Just enter your height and your weight, and JavaScript can use a formula created by the Panel on Energy, Obesity, and Body Weight Standards to figure out your Body Mass Index. This index classifies you into one of several categories, from underweight to desirable to obese.

Computers read and store the decimal numbers we see everyday (1, 5, 10, 100, etc.) as binary numbers, a number of just 1's and 0's. All that you do is enter the decimal number and the script will output the binary equivalent! It is a binary converter!

This is a very simple calculator, all done with javascript. Just click the numbers and the operators and use the '=' button to calculate! This is a neat example of the LIMITLESS powers of JavaScript.

Confused about the various units used to calculate bandwidth, and their equivalent in another unit? Use this bandwidth calculator code to instantly figure it out!

A simple calculator to determine the area of a square, triangle, rectangle, circle or sphere.

Put a calculator code on your page that can tell a visitor the square units of a square, rectangle, parallelogram, or a triangle.

Use this JavaScript to help figure out your mortgage payments. It takes the percentage rate, principal and the length of the loan and produces a payment schedule.

This useful JavaScript calculator will tell you the degrees, Nautical Miles, Statute Miles, and Kilometers between your originating and destination airports. It's got a built-in database of over 150 of the most traveled airports! Very neat! I've given a copy to everyone I know who fly often.

Another script to makes the basic calculator.

Here is a really simple JavaScript calculator code - with just 5 functions! (Add, subtract, multiply, divide, and power) This example can help you see how JavaScript evaluates math functions! Check it out.