free unit conversion calculators

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Convert 4.10 (5.0 beta)

Conversion program that will convert the most popular units of distance, temperature, volume, time, speed, mass, power, density, pressure, energy and many others, including the ability to create custom conversions. broken link?Comments 

English2metric 1.0

unit converter designed especially for non-technical users. The program can convert between any pair of units used in everyday life. Such features as special design, auto complete and the ability to choose visible units make the speed of all conversions lightning fast. In most cases, you need to type just the first letter of the unit. broken link?Comments 

Instant Converter

A universal conversion program that converts units from time, length, area, volume and much more. Even comes with a breeding chart most useful for animal husbandry. broken link?Comments 

NumericalChameleon 1.6.0

Converts numbers with a precision of up to 1000 significant figures! It supports more than 1200 units in 73 categories, including lengths, areas, volumes, durations, bits & bytes, angles, temperatures, exchange rates, roman numerals, spoken numbers, all 35 radixes, and more. broken link?Comments 

Phoenix Converter 4.5

Designed to help simplify the process of converting units. Its simple and intuitive screens and menus allow you to simply enter values and Phoenix Converter automatically converts per the selected units. broken link?Comments 

Quick Convert 1.11

Conversion calculator. broken link?Comments 

Uconeer 2.4

Units conversion program that is designed specifically for engineers. It includes a wide range of technical categories required by engineers, but it excludes the archaic and esoteric units that clutter the menus of the other conversion programs. broken link?Comments 

Unit Conversions 2000 2.6

Small utility that will allow you to quickly convert units of measure from one system to another. Facilities are included to convert various Lengths, Weights, Volumes, Areas, Density, Power and Scale measurements. broken link?Comments 

Unit Converter

Tool for conversion of the most frequently used units of Length, Weight, Volume, Area and Temperature in both U.S. and metric types. Enter any value and convert it to the desired result unit. Result can be copied to clipboard. broken link?Comments 

Versaverter 3.0.0.178

Convereter between 979 units. broken link?Comments 

WinThermO

interactive, graphical, temperature conversion and display utility. broken link?Comments