4-digit Chmod calculator 
A beefed up version of the original chmod calculator that includes an extra "SuperUser" column. There's no stopping you from correctly setting permission on your files now!

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

Basic calculator
Your basic calculator. Nothing fancy.

cm-inch-feet converter
Take the headache out of figuring out how many inches 176 cm is, or feet 30 inches is, with this extremely handy conversion script!

Counter script
This is a fakeyet highly believable- JavaScript counter script. The script DOES actually increment the visitor count, though it does so based on a fixed algorithm involving the current date, not the actual number of visitors. Use it to add a fun, inflatable, and most importantly, believable counter display to your site!

Decimal-to-binary converter
Looking back at when I was in college, there were many occasions when I had to convert decimal to binary numbers (especially on  assignments). If only I had the following script! It's a decimal-binary converter that, well, converts decimal numbers to binary instead! Simply enter into a text box the number in decimal form, and out comes it's twisted clone!!

Dog Years Calculator 
Dogs have a much shorter life span than us humans, so proportionally speaking, every year we live is many in terms of dog years. Used the below fun calculator to find out how old dog years wise you currently are!

GPA calculator
Calculates the person's GPA

Graphical Calculator
A cool JavaScript calculator with a graphical interface! Sure looks better than most JavaScript calculators out there.

JavaScript dice simulator
This is a fun JavaScript dice...use it when the real thing's not close by!

Jeroen's chmod calculator
Jeroen's Chmod calculator is the most robust calculator of its kind. It allows you to lookup and display the permission setting value (ie: 755) for files in 3 different ways, including its text equivalent (ie: -rwxr-xr-x).

Length Converter
Use this practical script to easily convert between the 7 most popular length units- centimeters, meters, kilometers, miles, inches, feet and yards. Simply enter a number, and let the script display the desired equivalents. Cool!

Loan Calculator
A JavaScript calculator that calculates your monthly loan payment.

New European currency calculator
This is an absolutely fabulous european currency calculator that calculates the money value of european countries currency in terms of the new European currency. Very cool!

Percentage Calculator 
Quickly, what's 10% of your lunch tab? How about what percentage of 255 68 is? Use this versatile percentage calculator to ensure you have the answers 100% of the time!

Roman Numerals Converter
An interesting script for converting between integers and Roman Numerals, as well as checking the validity of Roman Numerals for common mistakes.

Scientific calculator
A slightly more "advanced" JavaScript calculator.

Temperature Converter
A very handy script that instantly coverts between the major temperature units Fahrenheit, Celsius, and Kelvin.

"What day of the week was I born?" script
You may know what year and the exact date you were born...but let me ask you this question: "What day of the week was that?" This script tells you that!

World Population counter 
This script estimates the current population of the world using only math and displays the results live. The result is very close to official estimates!