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Online Converters & Calculators
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A
4 Unknown Calculator
Algebra
calculator for solving 4 unknowns.
A Dictionary of Units
This provides a
summary of most of the units of measurement used today
together with the appropriate conversion factors needed
to change them into a 'standard' unit of the S I.
A Glossary of Glassmaking Terms
Terminology provided by the Corning Museum of Glass.
A GLOSSARY OF SELECTED TERMS USED IN THE OIL
INDUSTRY
By the Institute of Petroleum.
Acceleration Conversion Factors
Select
units to convert from and to.
Acid Dew Point Calculations
Input process variables to calculate the dew
point of an acid.
Adobe Acrobat Reader
Adobe Acrobat
Reader is free software that lets you view and print
Adobe Portable Document Format (PDF) files.
Air Leak Chart
Compressed air leaks
can be very costly. Charts show typical costs associated
with leaks of various sizes.
Aluminium Alloys Database
This database
allows you to check the resistance of various aluminium
alloys to SCC in various environments.
An Interactive Quiz on Boilers and HRSGs
Utility to assist plant engineers keep current on their
boiler/HRSG skills.
Angle Converter
Convert to and from
degrees, grades, minutes, quadrants, radians,
revolutions, etc.
Angle Converter
Geometry calculator
for angles.
ASL Fingerspelling
Americal Sign
Language fingerspelling dicionary, ASL fingerspelling
converter, and more.
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Beam Calculators
For various beam
configurations, select a type, boundary condition, and
loading.
Bearing Fit Tolerance Chart
Table of basic numbers, nominal bore in mm,
and shaft rotating minimum and maximum diameters in
inches.
Boiler Duty Calculations
Input process
variables to calculate boiler duty.
Boiler Efficiency Calculations
Input process
variables to calculate boiler efficiency.
Boiler Water Glossary
Terminology provided by
Saftek Boiler and Machinery.
Boyle's Law Calculator
Boyles Law states
that the volume of a fixed mass of gas at a constant
temperature is inversely proportional to the pressure of
the gas.
Brittle Failure Calculator
For a given stress
state and safety factor, this calculator applies the
maximum normal stress criterion and Mohr's theory to
check if the principal stresses exceed a given tensile
or compressive strength.
BTU Calculator
This calculator is designed to
give an estimate of the heating needs of a room,
combination of rooms, or an entire building.
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Calculating Condensate Loads
When the normal
condensate load is not known, the load can be
approximately calculated using this formula.
Centrifugal Compressor Sizing
This procedure
determines the number of compression stages, discharge
temperature, head and both gas and brake horsepower
required per stage for a centrifugal compreesor.
Ceramic Materials Data
Examples of materials
data for ceramic materials.
Charles' Law Calculator
Charles' Law states that the volume of a fixed
massof gas at a constant pressure is directly
proportional to its absolute temperature.
Chemical Equation Balancer
Chemical equation
balancer to balance such chemical equations as C6H12O6 +
O2 = H2O + CO2.
Chemicool
Chemicool Chemistry Periodic table
(periodic chart) of the elements. Information about
hydrogen, oxygen, silver, carbon, aluminium...plus
Forum, Dictionary and Tools.
Circle, Sphere & Cylinder Calculator
Geometry
calculator for circles, spheres, and cylinders.
Circular Duct Differential Pressure Calculator
You input the diameter of the duct in inches, and the
flow rate through the duct in cubic feet per minute.
Circular Duct Flow Rate Calculator
You input
the diameter of the duct in inches, and the differential
pressure across the duct in WC.
Coefficient of Heat Transfer Converter
Coefficient of heat transfer conversion factors.
Combined Gas Law Calculator
Used when pressure, volume and temperature
change.
Common Piping Terminology
By the Flex-Hose
Company.
Comparisons of Materials: Coefficient of Thermal
Expansion
Table of coeficients for many
metals, and several ceramic materials.
Compression Spring Calculators
Frustrated by
reading spring catalogs trying to figure out which
spring gives you the right force or displacement? Maybe
one of these calculators can help you.
Concentration Conversion Factors
Select units
to convert from and to.
Conversions of Industrial Gases
Convert a gas
from one unit of measure to another.
Copper Alloys Database
This database allows
you to check the resistance of various copper alloys to
SCC in various environments.
Corrosion Rate Calculator
Calculate corrosion
rate in 4 quick steps by specifying weight loss, area,
density and time. This popular utility allows you to
specify values and gives the output in a wide variety of
units.
Crib Sheet for Plating
A periodic table for
plating, electrochemical equivalents, troubleshooting
nuggets, other little used facts.
Crude Oil & Products
Volume, weight, and flowrate conversion
factors.
Crystal Lattice Structures
This page offers a concise index of common
crystal lattice structures. A graphical representation
as well as useful information about the lattices can be
obtained by clicking on the desired structure.
Cubic Equation Calculator
Algebra calculator
for cubic equations.
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Elastic Constant Converter
Calculator that
allows you to convert from any 2 constants to all others
in common use.
Energy, Environmental, and Economics (E3) Handbook
Information on a wide number of topics generally
associated with energy and environmental research and
development, such as environmental regulations,
technology transfer issues, energy statistics, etc.
Engineering Conversion Factors
Calculators
for energy, pressure, volume, density, specific volume,
specific heat, enthalpy, thermal conductivity,
viscosity, and coefficient of heat transfer.
Engineering Material Properties
Table gives
various engineering material properties listed
alphabetically. The units are SI.
Engineering Unit Conversion Calculator
Converts area, density, energy, force, length, mass,
power, pressure, speed, temperature, and volume.
Engineering Units Conversion
Convert
quantities like Energy, Pressure, Enthalpy, Entropy,
Viscosity from one system of units to another.
Evaluating Heat Transfer Fluids Utility
Need
a heat transfer fluid? This utility provides an easy way
to compare the technical specifications of a range of
fluids.
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Financing Made Easy
Directory of financing
sites that help you with bankruptcy, refinancing and
second mortgages
Flow and Level Measurement Glossary
By Omega
Engineering.
Fluid Flow Glossary
By the University of
Texas Department of Petroleum and Geosystems
Engineering.
Foil Terminology Glossary
Foilcenter explains
terms specific to foil production such as luster,
tension leveling, strain hardening and more.
Force Converter
Convert to and from dyne,
joules, kilograms, newtons, pounds, tons, etc.
Fraction Calculator
This calculator tells you
where your decimal fraction stands on the 1/8, 1/16,
1/32, and 1/64 scales.
Free SDOF System Calculator
This calculator
returns the natural frquencies, damping ratio, and the
closed-form solution for a Single-Degree-Of-Freedom
mass-spring-damper system.
Frequency & Wavelength Calculator
Input and
output is in Hertz, centimeters and electron volts.
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Half-Life Calculator
Calculations involving
the exponential deacy of radioactive materials.
Hardness Conversion Table
Convert Rockwell,
Superficial Rockwell, Brinell, Vickers, Sclero-Scope,
and Tensile Strength numbers.
Hardness Converter
This calculator explains
and inter-converts comomonly used hardness scales,
including Brinell, Knoop, Mohs, Rockwell, Shore, and
Vickers.
Hazardous Chemicals Database
Allows you to retrieve information for any of
over 1300 hazardous chemicals based on a keyword search.
Heat Capacity Conversion Factors
Select units
to convert from and to.
Heat Exchanger Inlet/Outlet Temperature Prediction
This procedure predicts the thermal behavior of a single
heat exchanger or a bank of identical heat exchangers.
Heat Exchanger Log Mean Temperature Difference
This procedure calculates the Log Mean Temperature
Difference (LMTD) of a heat exchanger in parallel or
counter-current flow.
Heat Exchanger Shell Side Pressure Drop
This
procedure calculates the shell side pressure drop of a
heat exchanger for both laminar and turbulent flows.
Heat Exchanger True Temperature Difference
This procedure calculates the corrected Log Mean
Temperature Difference (LMTD) of a single heat exchanger
or a bank of identical heat exchangers connected in
series.
Heat Exchanger Tube Side Pressure Drop
This
procedure calculates the tube side pressure drop of a
heat exchanger for both laminar and turbulent flows.
Heat Flux Conversion Factors
Select units to
convert from and to.
Heat of Combustion of Fuel Gas
For a wide
variety of fuels.
Heat of Combustion of Fuel Oil
This procedure
calculates the heat of combustion of a petroleum or
synthetic liquid fuel.
Heat Tracing System Design
Helpful calculator for basic freeze protection
and process maintenance heat tracing applications.
Heat Transfer Coefficient Conversion Factors
Select units to convert from and to.
Heat Transfer Factor
Heat transfer factor is
used in heat transfer in general and free and forced
convection calculations in particular.
Heat Treating Glossary
This glossary
currently contains more than 1000 metallurgical terms.
HRSG Temperature Profile Calculator
Program
evaluates the gas/steam temperature profiles of single
pressure HRSGs in the design mode only.
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Inductance Converter
Convert to and from
henry and derivatives, emu, and esu units.
Inspection Penetrant Glossary
By the American
Gas & Chemical Co. Ltd.
Insulating Products Search Engine
NIST Heat Transmission Properties of
Insulating and Building Materials.
Insulation Chart
Waste of fuel per year by
heat loss from 1 foot of pipe (Steam at 100 PSI /
Ambient Temp. 60º F.)
Interactive Unit Equivalency Converter
This utility allows you to convert from one
engineering scale to another.
Interactive Unit Equivalency Table Generator
This utility allows you to generate an equivalency table
from any engineering unit (milliAmps, for example) to
any other.
Inter-Conversion of Oil Distillation
Enter
percentage distilled and temperature for conversion to
selected units.
International Thermocouple Color Codes
For thermocouple and extension grade wires.
Internet Glossary of Pumps
By the Animated
Software Company.
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Language Converter
Translates from German,
Italian, Spanish, Russian, German, Portugese, and French
to English.
Language Translator
Translate English
language web pages or text to Spanish, Portuguese,
French, German, or Italian.
Leak-Testing Glossary
By the American Gas &
Chemical Co. Ltd.
Loan Calculator
For a given amount, find the
monthly payment, interest rate, or number of payments.
Low Alloy Steels Database
This database
allows you to check the resistance of various low alloy
steels to SCC in various environments.
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Materials and Corrosion Database
Database
allows you to check the resistance of a specified
material in a specified environment.
MatWeb Materials Information Resource
A
searchable materials information database covering
21,580 materials including metals, plastics, ceramics,
and composites.
Metal Hardness Reference Tables
Various
conversion tables of Rockwell and Brinell hardnesses.
Metal Specifications Cross Reference Utility
Select a specification originator, and the specs you
want to review.
Metal Temperature by Color
Table of colors
and corresponding temperatures.
Metal Weight Calculator
Enter size and metal
type to calculate the weight of many metals.
Mortgage, Loans and Financial Calculators
These financial calculators can help figure calculations
on mortgages, car loans, home equity loans, CDs,
savings, credit cards, student loans and more. (US
based)
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NIST Thermocouple Database
NIST reference
functions and tables of thermocouple electromotive force
(emf) versus temperature have been adopted as standards
by the ASTM and the IEC.
Nitrogen Loss Chart
Nitrogen leaks cost
approximately 10 times more than compressed air leaks. A
chart indicating the high cost of N2 leaks.
Non-Metric "Adding Machine"
Adds Feet &
Inches, Pounds & Ounces, Quarts & Cups, etc.
NPT Tap Size Chart
Recommended drill sizes for National Pipe
Threads.
Ohm's Law Calculator
Enter two variables to
calculate the others.
On-line Corrosion Problem Solver
Provides assistance in the identification of
the root cause of common corrosion problems through
information obtained from simple visual examination of
the corroding components or equipment.
Optimum Dimensions of a Vessel
This procedure
calculates the optimum dimensions of a cylinderical
pressure vessel with a known volume.
Organic Compounds Database
Provides physical
data on a large number of organic compounds, including
molecular weight, melting point, boiling point, index of
refraction and UV absorption peaks.
O-Ring Data Page
Gives all of the relevant
data for standard oring sizes:
OD/ID/cross-section/volume/metric for AS-568A uniform
dash numbers
Oval Duct Differential Pressure Calculator
You input the length of the major and minor axes of the
duct in inches, and the flow rate through the duct in
cubic feet per minute.
Oval Duct Flow Rate Calculator
You input the
length of the major and minor axes of the duct in
inches, and the differential pressure across the duct in
WC.
Overall Heat Transfer Coefficient
This
procedure calculates the overall heat transfer
coefficient of a heat exchanger.
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Quadratic Equation Calculator
Algebra
calculator for quadratic equations.
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Radial O-Ring Calculator
This calculator
outputs the O-Ring inner diameter and the range of
O-Ring cross-section diameters that will meet user
prescribed limits on groove and bore diameters and
O-Ring compression.
Radioactivity Unit Converter
Convert various units of radioactive
measurement.
RadioCalc
Scientific calculator and
universal converter for radio communication and
electromagnetic compatibility (EMC).
Reciprocating Compressor Sizing
This
procedure determines the number of compression stages,
discharge temperature, head and both gas and brake
horsepower required per stage for a reciprocating
compressor.
Rectangle Duct Differential Pressure Calculator
You input the length of the two sidesof the duct in
inches, and the flow rate through the duct in cubic feet
per minute.
Rectangle Duct Flow Rate Calculator
You input
the length of the two sidesof the duct in inches, and
the differential pressure across the duct in WC.
Research-It!
General information search
engine interface of many useful resources.
Resistor Color Codes
Table of colors, 1st
and 2nd significant figures, multipliers, and
tolerances.
Reynolds Number
Reynolds number is used in
momentum, heat, and mass transfer to account for dynamic
similarity.
Reynolds Number Calculator
This calculator
computes the Reynolds Number given the flow
characteristics asked for. It outputs the flow type you
can expect (laminar, transitional, or turbulent) based
on the Reynolds Number result.
Right Triangle Calculator
Any right triangle
can be solved for all sides and angles if you just know
two sides or one angle and one side.
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Salary Calculator
You make your location
choices from pull-down menus, then see how much money
you'd need to earn to maintain the same cost-of-living
level if you were to relocate to your chosen
destination.
Saturated Steam Table
Condensed table of the
thermodynamic properties of saturated steam.
Saturated Steam Tables
Calculator is used to
compute the thermodynamic properties of saturated steam.
This calculator uses steam properties from the 1967 ASME
Steam Tables
Scientific Calculator
This is a simple but
fairly general numeric expression evaluator, with a
large number of built-in transcendental functions. It
requires a Web browser that supports JavaScript.
Screw Data Page
Give all of the relevant
data for sockethead capscrews, panhead machine screws
and hexhead capscrews. Simulates the TAD-type
slide-card.
Search for an Individual ASTM Standard
Search
utility to find the ASTM standard by designation or
listing.
Shell Side Heat Transfer Coefficient
This
procedure calculates the shell side heat transfer
coefficient of a heat exchanger for both laminar and
turbulent flows.
Single Phase Pressure Drop in Down Flow Fixed-Bed
Reactors
This Procedure utilizes the Ergun
equation to calculate the pressure drop in down flow
fixed-bed reactors. It applies equally well to gases and
liquids.
Single Phase Pressure Drop in Piping
The
pressure drop calculation presented here applies to
Newtonian fluids which are incompressible and single
phase in isothermal and steady-state flow situations.
Solving for 3 Unknowns
Algebra calculator for
solving 3 unknowns.
Solving for Two Unknowns
Algebra calculator
for when you have 2 unknowns.
Sonic Velocity in a Gas
This procedure
calculates the sonic velocity in an ideal gas.
Specific Heat Converter
Convert to and from
all standard units.
Square Duct Differential Pressure Calculator
You input the length of a side of the duct in inches,
and the flow rate through the duct in cubic feet per
minute.
Square Duct Flow Rate Calculator
You input
the length of a side of the duct in inches, and the
differential pressure across the duct in WC.
Standard Atmosphere Computations
Uses
JavaScript to compute properties related to the 1976
standard atmosphere up to 230,000 ft.
Standard Sieve Sizes
Cross reference of Mesh
Size (microns), TYLER, ASTM-E11, BS-410, and DIN-4188.
Standard Tap Size Chart
Gives the
recommended drill size for American standard and ISO
metric threads.
Standard Temperature and Pressure Calculator
Gas volumes are compared at a Standard Temperature of
273.15 Degrees Kelvin and a Pressure of 760 torr.
Steam Loss Chart
Steam flow through orifices
discharging to atmosphere.
Steam Trap Table
Types, operating
characteristics, and performance in particular
applications.
Steam Turbine Calculations
Input process
variables to calculate exit steam quality, rate, etc.
Steam Usage Animation
Shows how steam is used
in a cogeneration facility, baghouse, etc.
Steel Industry Glossary
Comprehensive
glossary published by Weirton Steel.
Surface Roughness
A chart showing what
surface roughness ranges are typical for a number of
fabrication processes.
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Table of Pipe Taper and Straight Thread Dimensions
National Pipe Taper and Straight Thread Dimensions.
Tank Volume
Calculate the volume of liquid in
a cylindrical tank. Orient the tank either vertically or
horizontally.
TEMA Heat Exchanger Designations
Enter
designation for front end stationary head type, shell
type, and rear end head type for a picture of the
configuration.
Temperature Controller Simulation
Enter
various parameters and graph the results.
Temperature Sensor Comparison Guide
Table comparing temperature sensor attributes
of thermocouples, RTDs, and thermistors.
Terminal Velocity of a Rigid Particle
This
procedure calculates the terminal velocity of a single
rigid particle falling in a Newtonian fluid under the
influence of gravity and is applicable to the laminar,
transitional, and turbulent flow regimes.
The Directory of Online Statistics Sources
This directory lists online statistics sources, by
subject, for quick reference.
The Periodic Table of Elements
Detailed
information for all elements, physical properties,
chemical and structural properties, and other data.
The Phase Diagram Web
A free service of the
Georgia Tech Joint Student Chapter of ASM/TMS showing
binary elemental phase diagrams and links to prediction
software and other related sites.
Thermal Conductivity Converter
Thermal
conductivity conversion factors.
Thermal Efficiency of Gas Fired Heaters
This
procedure calculates the thermal efficiency of a gas
fired process heater and is based on API recommended
practice 532.
Thermal Efficiency of Oil Fired Heaters
This
procedure calculates the thermal efficiency of an oil
fired process heater and is based on API recommended
practice 532.
Thermal Expansion (Linear) Conversion Factors
Select units to convert from and to.
Thermal Expansion (Volume) Conversion Factors
Select units to convert from and to.
Thermal Spray Technology Glossary
A mixture
of generic and popular terminology has been adopted by
the thermal spraying industry.
Time Zone Converter
Find out the time
anywhere in the world.
Titanium-Zirconium Alloys Database
This database allows you to check the
resistance of various titanium-zirconium alloys to SCC
in various environments.
Tube Properties
This converter provides easy
access to standard tube properties and characteristics.
Tube Side Heat Transfer Coefficient
This
procedure calculates the tube side heat transfer
coefficient of a heat exchanger for both laminar and
turbulent flows.
Two Phase Flow Regime Determination
The two
phase flow regime determination procedure presented here
applies to steady-state, isothermal two phase pipe flow
of incompressible Newtonian fluids.
Two Phase Horizontal Flow Regime Map
For use
in developing plant piping systems.
Two Phase Pressure Drop in Piping
The
frictional pressure drop calculation presented here
applies to steady-state, isothermal two phase pipe flow
of incompressible Newtonian fluids.
Two Phase Vertical Flow Regime Map
For use in
developing plant piping systems.
Typical Heat Exchanger Fouling Resistances
For refining applications, natural gas processing,
chemical processing, industrial fluids, and cooling
water.
Typical Overall Heat Transfer Coefficients
For alkylation, amine treating, catalytic cracking,
crude distillation, hydrodesulfurization, light ends
processing, lube & wax processing, naphtha hydrotreating
& reforming, and thermal cracking.
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Ultimate Ellipse Calculator
Geometry
calculator for elipses.
Ultimate Triangle Calculator
This solves for
any type of triangle, and calculates the area as well.
Ultra Converter 1
Converts Distance, Area,
Volume, Mass and Time.
Ultra Converter 2
Converts Velocity, Force,
Pressure, Energy and Power.
Unit Conversion Calculator
Featuring more
than 800 units in our database (and growing), we give
the unit definition and SI-dimensions in addition to
converting from one unit to other units in the same
family.
Unit Conversions
Over 40 conversions,
including flow rates, heat flux, viscosity, latent heat,
specific heat, and more.
Unit Converters
Wide variety of engineering
unit conversion calculators.
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Vector Calculator
This is a simple Java
applet intended to give students a "feel" for vectors in
two dimensions. Specifically, it covers components,
magnitude and direction, and vector addition.
Venturi Flowmeter Calculator
A fluid passing
though smoothly varying constrictions experience changes
in velocity and pressure. These changes can be used to
measure the flowrate of the fluid.
Viscosity Converter
Viscosity (absolute)
factor converter.
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