Conversions-R-Us
Convert units of measurements, bases, and PPT, RTF, DOC, and XLS files to HTML.

Math Connect
Provides calculations of various types including metric conversion.

GoConvert
A comprehensive site for conversion calculations. Convert 165 currencies and hundreds of measurements.

Measurement Units Translation
Measurements converter for time, length, volume, and weight. Requires JavaScript.

On-Line Measures Converter
Length, area, mass and weight, volume and capacity, temperature, angles, force, torque, electricals, cloth sizes, and some others.

Metric System Formulas
Formulas for converting imperial system into metric system. Site in both English and French.

Unit Conversions
Online calculator -- Mississippi State University

Convert It
Conversion calculator of physical measurements. Includes metric and English units and also a large range of other possible conversions.

Conversion Factors for Energy Equivalents
Physics laboratory of the National Institute of Standards and Technology (NIST) sponsors and maintains this reference resource of CODATA-recommended values of fundamental physical restraints.

Convertalot
Collection of free Java measurements converters, calculators, unit translators and Java Games with downloadable source code and zip files.

MegaConverter
Best Place to Figure What Equals What. megaConverter is THE resource for units, weights, measures, calculators and converters.

Conversion Table of Non-Metric measures into SI and CGS
Conversion of non-metric measures into SI (meter-kilogram-second) and CGS (centimeter-gram-second).

Unit Converter
Online Java unit conversions - converts anything to anything.

Chinese Numbers
Chinese Numbers converter. Find Chinese equivalents to English numbers.

Convert-me.Com
Interactive calculators for many common and exotic measurement systems, including metric, Ancient Greek, Roman, and old Russian.

Online Unit Converter
Personalizable, free, and available in five languages. It converts distance and length, area, capacity and volume, pressure, temperature, and speed.

Netbored Tools
Weight, temperature, length, area, capacity, pressure, speed and time, also currency converters and translators.

Allchin Measurements Converter
Converts common measurements from metric to imperial and vice versa, with other systems included for selected quantities such as light years, picas, and Old Russian measures.

Engineering Conversion Factors
Online calculators for all engineering units of measurement from Process Associates.

iAgora Conversions
The most complete Unit Conversion Engine around - supports calculations involving temperature, length, mass, and more; Along with a Traditional Conversion Table.

Convert-Me
Metric, English old Russian, ancient Greek and Roman, nautical, typographical and astronomical conversions.

Fuzzycrawler
Converts metric, imperial, energy, torque, acceleration, mass, force, length, light, mass force, and electricity.

Metric Sucks
Metric to English conversion utility, with emphasis on the author's view that the English units are superior. The calculator combines conversions with humor.

Science Made Simple
Online metric converter gives U.S. customary and metric conversions.

Online Converters
Provide online javascript converters and calculators for converting metric to imperial units and vice-versa.

Online Conversion
Convert just about Anything to Anything else Over 8,100 Conversions and Calculators

WWW Unit Converter
Converts area, density, energy, force, length, mass, power, pressure, speed, temperature and volume, bits and bytes.

Ninja Suit
Specializes in e-tools, such as online converters and calculators, for business, education, science, travel, research and enjoyment purposes.

Measurement Unit Converter
Converts many units of measurement using a JavaScript 1.1 applet.

MrCalculator
A collection of calculators that run in your web browser.

Unit Conversion and Day of the Week
Over 100 conversion factors such as inches to centimetres, gallon to cubic metres or even curie to becquerel. Includes instructions as to how to use the conversion factors in your calculations.

English-Chinese Ideographic Generator
English-Chinese number converter and chart with ideographic and unicode equivalents

Physics Calculator
This RPN calculator implements arithmetic and scientific operations and functions, as well as predefined physical constants.

Unit conversion and Reference Tables
A very handy unit conversion, nearly every known unit is listed here.

ABE Volume Calculator Page
A collection of volumetric calculators for a variety of shapes. Including cylinder sphere barrel pyramid and dome.

Prefix Conversion Calculator
Conversion Calculator for Prefixes

FUSE Continuous Viewing Zone Calculator
This calculator can be used to estimate the right ascension and declination of the continuous viewing zone.

Equatorial to Galactic Converter
Convert Equatorial to Galactic Coordinates

KW Liquid tank Heating calculator
To determine kW required to raise the temperature of any Liquid

Schmidt R Value Conversions
Convert Schmidt R Values to PSI or N/mm2

SingleChips - Online, Java Flow Calculator
Java applet, natural gas flow calculator

Calcula
Compound unit calculator and converter. Interface with GNU source code available. In both Spanish (Castellano) and English.

MIT 3.091 Units Converter
A tool for engineers and others to convert from almost any set of units to any other.

EngNet Engineering Units Converter
Online calculator provides conversions between a number of common (and not so common) units.

Conversion of Units
Database of conversion factors and a calculator.

Ron's Hard Conversion Tools
Online unit conversion calculators for volume, distance, weight, and temperature units. Also includes number conversion (decimal, hex, and binary) and a tool to convert characters to or from ASCII codes.

Measurement Conversion
Convert volume (capacity), weight, length, area, temperature, pressure, torque, power and energy measures between U.S./Imperial and SI (Metric) units. Requires JavaScript.

Body Height Weight Converter
Converts from American to metric units and vice versa.

Interactive Unit Equivalency Table Generator
Generates an equivalency table from any engineering unit to any other.

Dario Alpern's Complex Number Calculator
Computes basic operations, 1/z, pi, exponent, log, trig, and polygamma functions. Includes memory feature.

Online Calculators.net
Online Calculators provide free online javascript calculators and converters for unrestricted use

Calculate for Free
A variety of tools for determining an array of metrics and measurements.

Calculator City
Includes tools to solve equations like Includes calculators for velocity, density, financial, geometry, algebra, calculus, astronomy, chemistry, physics and webpage color coders. Also, has trivia fact pages, such as state demographics and presidents.

Calculator.com
Online calculators for a variety of conversions and calculations.

eFunda: Units and Constants
The index page for units, fundamental constants, and currencies.

iFigure
Provides links to online calculators and worksheets. These are interactive, educational tools that provide information to help in planning, solving and making decisions for a variety of problems and tasks that come up daily.

Martindale's Calculators
An extensive collection of calculators for the sciences, business and everyday measurements. Organized by subject area.

SciNet Resources : Unit Conversions
Various unit conversion programs for engineering including Enthalpy, Entropy, Thermal Conductivity , and Viscosity conversion.

The Foot Rule
Convert units from one measure to another (e.g. meters to yards, liters to gallons). A very extensive collection of units and categories. Includes usage and definitions descriptions of units and categories.