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Click on a heading below to select a JavaScript. To
view the source code for the JavaScript Right Click
the mouse button over the JavaScript window and then
select "View Source" from the pop-up window
Copy and paste the code. If any graphics are used in
the script. Right Click the mouse button over each graphic
and then select "Save Picture As" from the
pop-up menu. All the graphics should be put in the same
directory as the JavaScript. To go back to the Index
just close the JavaScript window.
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| 5
Function |
Here is a really simple JavaScript calculator - with just
5 functions! (Add, subtract, multiply, divide, and power)
This example can help you see how JavaScript evaluates math
functions! Check it out!
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| Ad
Calculator |
Selling ad banners has just got easier! Just enter two fields
of the three fields of information, such as the total cost,
CPM (cost per thousand impressions), and exposures (number
of ads shown), and the calculator will solve the last field
for you.
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| Adjusted
Cost Base |
Computes the average cost base (or cost per share) for a
series of stock or mutual fund purchases. When a sale is entered,
the capital gain (or loss) is calculated.
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| Advanced |
This is a very comprehensive JavaScript calculator. Although
the source code can get quite confusing, it works.
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| Age
Calculator |
Just enter the birthday you wish to track and JavaScript
will display the person's age, down to the second. Displays
your age along with the day you were born.
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| Airport |
This useful JavaScript calculator will tell you the degrees,
Nautical Miles, Statute Miles, and Kilometres between your
originating and destination airports. It's got a built-in
database of over 150 of the most travelled airports!
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| Amortization |
Calculate monthly mortgage payments quickly and easily.
Displays an Amortization Table.
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| Area
Calc |
A simple calculator to determine the area of a square, triangle,
rectangle, circle or sphere.
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| Armor |
JavaScript can help you figure armor penetration.
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| Atmosphere |
JavaScript can help you do atmospheric computations.
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| Bac |
Calculates an individual's blood alcohol content based on
the quantity of beverages consumed, the alcohol percentage
in each drink, the person's weight, and the time spent consuming
the drink.
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| Basic |
This is a very simple calculator, all done with javascript.
Just click the numbers and the operators and use the "="
button to calculate!
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| Beat
Counter |
A manual Beats per Minute (BPM) counter for DJs. Counts
the beats-per-minute of a song by tapping a key or the mouse
to the beat of a song. Simply click on the page to start the
time then tap any key to the beat.
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| Best
Price |
Calculates the total cost of an order based on the number
of items you want to order. As the total number increases,
the cost per item decreases
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| Binary
Converter |
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!
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| Body |
I like this script because it uses some very ingenious JavaScripting
techniques. into the process, it analyzses a persons information
(sex, height, weight) and responds with a comment message.
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| Body
Mass Index |
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.
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| Bubble
Sort |
Sorts using the bubbleSort method. Simply enter a list of
numbers into the text box and click sort.
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| Calculator |
Just a nice, simple, and clean calculator. You can even
change its color. A perfect example of JavaScript simplicity!
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| Calories |
JavaScript can help you figure how many calories you have
burned.
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| Circle
Solver |
Can't remember the formulas for the other two parts of a
circle (area, diameter, or circumference) when you only know
one? To the rescue is Circle Solver. Enter the circle area,
diameter, or circumference and it will solve for the other
two!
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| Circumference |
JavaScript can help you figure the circumference of a circle
when you enter the radius.
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| Compound
Interest |
Use JavaScript to calculate compund interest. Warns about
doubtful data.
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| Cosine |
Enter the adjacent and hypotenuse angle values and JavaScript
will solve the cosine angle for you.
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| Date
Difference |
Enter two dates (including the time!) and this script will
display the number of weeks, days, hours, minutes, and seconds
between the two. The seconds field is optional, too. For an
example, try entering your birthdate and compare it to today's
date.
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| Day
Of Week |
Calculate what day of the week a given date was. It works
for leap years and also tells you whether the date is in the
past future or today.
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| Distance
Speed Time |
Calculate the time, distance, or speed given any two of
the pieces of information.
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| Dog
Years |
This is a practically useless script. Convert your age to
dog years. (Your age / 7) But, it's helpful for people beginning
JavaScript to look at.
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| Download |
This calculator will help you estimate how long it will
take to download a file at any of a number of modem speeds.
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| Driving |
Use JavaScript to estimate the driving distance between
U.S. cities.
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| Expression
Solver |
Just enter a math expression (with +, -, *, and / signs)
and this script will evaluate the expression for you.
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| Factors |
Use JavaScript to find out if a number entered is odd or
even and the factors of that number.
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| Fibonacci |
Displays the Fibonacci Sequence of Numbers as entered by
the user. Warning: This is very processor intensive, do not
enter a large number.
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| Field
Depth |
For all you photography enthusiasts out there, this script
makes it a breeze to determine the field depth and amount
that will be in focus in a photograph. Includes other measurements
such as nearest and furthest points of focus, too.
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| Function
Grapher |
Graphs any function you enter on the scale of your choice,
assuming you use the correct JavaScript syntax. For example,
to use Cos x, use Math.cos(x). Or, for x^2, use Math.pow(x,
2), etc.
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| Gpa |
This is a very useful script to figure out your class GPA.
Just enter the letter grade for each class.
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| Graphing
Function |
Enter the X-Y coordinates for a function and this script
will give you the graphing formulas, including Formula, Slope,
Y-intercept, Parallel and Perpendicular lines.
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| Group
Work |
Ever had to work with another person to complete a task?
This calculator will tell you how long it would take two people
to complete the task if you know how long it would take each
person to complete the task individually.
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| Horsepower |
Enter your vehicle's quarter mile time (assuming you know
it) and vehicle weight and this JavaScript program will display
your car's estimated horsepower.
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| Income |
Estimates your weekly, bi-weekly, monthly, and yearly income.
Very useful when job hunting when offered an income per hour,
month, or year. The tax bracket numbers are adjustable with
each year's income tax levels.
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| Interest |
Use JavaScript to find out just how much that new house
or car is going to cost you each month. Enter values into
the fields below to find out how much each monthly payment
would be with the given number of payments, interest rate,
and loan amount.
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| Kinetic
Energy |
Solve any of three variables in a Kinetic Energy equation
using this script. Simply enter two of the three values and
submit to find the value of the third variable.
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| Landscape
Grapher |
JavaScript 3D terrain grapher which creates virtual landscapes
using three-dimensional fractal geometry, random numbers,
and a simple mathematical formula. "s" indicates
under sea-level. Just hit reload to get a new landscape.
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| Lap
Time |
Calculates the average lap split time required to finish
a race in the time you enter.
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| Lcm
And Gcd |
Calculate the Least Common Multiple and Greatest Common
Divisor of two numbers using this short script.
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| Leap
Year |
Is it a leap year? What about in 1900? Get your leap year
facts straight with this leap year calculator. Just enter
the year you are interested in and the script reports whether
it is a leap year or not. Or, enter a range of years and JavaScript
will display all the leap years in that range.
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| Male
Body |
Calculates a man's ideal body measurements based on his
wrist circumference.
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| Miles
Per Gallon |
Computes the miles per gallon of your car via the miles
traveled and the number of gallons used. Also, if you enter
the cost per gallon and how many miles you drive a day, it
will estimate your monthly and yearly gas expenses.
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| Money
Counter |
Enter the number of bills and coins and this script will
calculate the total amount of money you have. All blank entries
are ignored. Input field validation is also included -- try
entering a non-digit into a field. Also, this script is a
good demonstration of a JavaScript return function in use.
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| Parabola
Grapher |
Enter a parabolic equation, like 5x^2 + 18x + 27 and this
calculator will determine all the vital information about
the graph. And, a rough graph of the curve is available.
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| Paycheck |
Entering your pay rate and the number of hours you worked
and optionally any overtime hours and pay rate, your own tax
rate, and other deductions. Find out where your money comes
from and where it's going.
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| Percent |
Don't waste another minute dealing with percent problems.
This script will solve both of these for you, just enter the
values!
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| Percent
Of Increase |
Enter two numbers and JavaScript will help you determine
the percent of increase. This is a perfectly simple example
of using a JavaScript return function.
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| Periodic
Table |
Besides a very organized Periodic Table, this script will
tell you lots of information about any periodic element you
click on.
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| Phone
Text |
Have you ever wondered if your phone number has a memorable
text equivalent, like 555-HELP? Just type it in and this script
will generate all possible combinations, just pick your favorite
one and tell the world how to reach you.
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| Phone
Bill |
Does it ever bother you how much a long-distance phone call
is going to cost, after you hung up? With this script, all
you have to do is enter the amount per minute, and any initial
amount, then click start when the call begins and see the
total charge at any time!
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| Polygon |
Figure out the number of sides, measure of each exterior
angle, and the measure of the interior angle of any polygon.
Simply enter one of the three pieces of information!
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| Pregnancy |
Enter the mother's pregnancy information into this calculator
and JavaScript will provide an estimated conception date,
birth due date, and an estimated current fetal age. Great
for all those mothers-to-be!
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| Prime
Number |
Enter a number and JavaScript can instantly tell you if
it is a prime number or not.
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| Pythagorean |
One of geometry's most useful formulas, the Pythagorean
Theorem, can be applied to the numbers you enter in JavaScript!
Just enter 'A' and 'B' and the script solves for 'C.'
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| Quadratic
Solver |
Why didn't I have one of these during high school math?
Just enter the coefficients for the quadratic 'Ax^2 + Bx +
C = 0' equation and JavaScript will output the solutions (if
they are not imaginary!).
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| Quadratic |
Solves quadratic equations for inputted coefficients. Answers
can be either real or complex.
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| Radioactive |
Use JavaScript to find how much radioactive material remains
after a given time.
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| Random
Distribution |
Generate normally distributed random numbers by entering
a mean value and standard deviation. Uses the normal law of
error to determine an events given probability.
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| Room |
Use JavaScript to find the approximate room size you'll
need depending on your room setup and arrangement.
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| Round |
A simple function to round a decimal number to any number
of decimal places you want just by passing it different values.
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| Running |
Allows runners to calculate their time, distance covered,
or pace by entering the other two values. Distance and pace
can be converted between various measurements. A great 3-in-1
script for runners!
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| Savings
Estimator |
Enter how much you can afford to save each month, how long
you can save this amount, and the interest rate you can get
on your savings and this script will display your total savings.
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| Scientific |
This is a very cool JavaScript calculator that does many
advanced functions - cosine, sine, tangent, square root, exponents,
etc.
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| Sine |
Enter the opposite and hypotenuse angle values and JavaScript
will solve the sine angle for you.
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| Square
Root |
Allows you to find the value of a number squared or that
number's square root.
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| Stock |
Deciding when to buying and sell stocks is difficult enough
- figuring the profit or loss from that trade shouldn't have
to be. Just enter the number of shares, your purchase price,
your selling price, and the commission fees for the trade
and this script instantly figures your resulting profit or
loss after commission fees.
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| Straight
Distance |
Enter a coordinate pair for each the starting and ending
points according to the Cartesian coodinate system. The script
will calculate the straight line distance between the two
points.
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| Tangent |
Enter the opposite and adjacent angle values and JavaScript
will solve the tangent angle for you.
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| Tax |
JavaScript helps your to calculate the before and after
tax prices for purchases. Very easy to use. Just put into
the price, the tax, and hit compute! It's all figured for
you!
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| Top
Speed Rpm |
Enter the diameter of the tire and the RPM value of the
motor and the script will tell you the top speed without any
weight on the Tires.
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| Wavelength |
Assists ham radio operators in converting a frequency to
its wavelength in feet or inches. Other uses include acoustic
measurement and adjustment, microphone placement, room tuning,
and speaker positioning.
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| Win
Calculator |
Always been fond of the calculator within Microsoft Windows?
This JavaScript mimics the Windows calculator in appearance
and function. Everyone, including Macintosh computer users,
can now their own Windows Calculator!
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| Wind
Chill |
Wind Chill is a mysterious and often misunderstood phenomenon.
This script describes what the wind chill factor really is
and offers a form to calculate the wind chill factor when
given the air temperature and wind speed.
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| World
Population |
Estimates the current world population based on US census
data and the world growth rate. Not exactly precise, but neat
anyways.
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| X
By X |
This is a very simple, very limited calculator that only
does multiplication. This script is perfect if multiplication
is all you are looking for.
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