Temperature Converter is a very handy script that instantly coverts between the major temperature units Fahrenheit, Celsius, and Kelvin.
Developer: wsabstract.com Platform: Date upd:2000-10-03 Hits3220 [Visit]

A calculator script is a must for numeric input fields of financial web sites. The script will show a calculator icon next to such fields. Clicking the icon will show a simple keypad attached to the input field. The input field itself serves as
Developer: JTricks.com Platform: Date upd:2007-03-27 Hits1691 [Visit]

Use this practical script to easily figure out how many megabytes is 134,643 kilobytes, or 1024,000,000 bytes is gigabytes. You get the idea.
Developer: wsabstract.com Platform: Date upd:2000-12-21 Hits5323 [Visit]

This script makes it easy to calculate how fast something goes "miles per hour", by allowing you to enter its speed using the more manageable "meters per second."
Developer: wsabstract.com Platform: Date upd:2001-11-25 Hits1181 [Visit]

Tigra Calculator PRO is flexible JavaScript calculator offering high reliability and wide browsers support. This script allows your visitors to perform necessary mathematical calculations quickly and easily without any additional means. Result is returned in single form field with user defined name. Tigra Calculator
Developer: Softcomplex Inc Platform: linux, windows, freebsd, osx, sun Date upd:2004-10-19 Hits534 [Visit]