Computes basic operations, 1/z, pi, exponent, log, trig, and polygamma functions. Includes memory feature.

Conversion Calculator for Prefixes

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

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

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

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

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.

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

Database of conversion factors and a calculator.

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