Calculator Typist Blog

List of Online Calculators

Looking for an online calculator? There are many web-based calculators around with different purposes and capabilities. I’ve sifted through the web to pick out some of the best calculators around. Here goes:

General Calculators

This section lists calculators which offer general calculation capabilities. These allow you to simply type any calculation into a free-form text box which they then try to answer.

Calcatraz – My free online calculator offering scientific, unit and currency calculations. Shows workings and a history of previous calculations.

CalculateForFree multiple functions – A calculator script with many functions. This calculator includes different measures conversion, rule of three, temperature conversion and other formulas.

Google calculator – Google will provide answers to calculations entered into the main search box.

Instacalc - The fast, easy shareable online calculator.

Wolfram|alpha – A computational knowledge engine. Enter a query and it uses its built-in algorithms and a growing collection of data to compute the answer.

Task-Specific Calculators

This section is for calculators which provide one specific function (e.g. scientific calculator, tax calculator, etc).

CalculateForFree -Free calculators for home, work and school. The main page offers a basic calculator with links to a wide range of specific calculators including travel, poker odds and global warming calculators.

Calculator.com – Another site with a number of specific calculators, including mortgage, math, loan, finance, scientific, health & sports calculators.

CalculatorSoup - As with the previous two, Calculator Soup offers a range of calculators for specific calculations, such as algebraic and geometric calculations.

Calculator.net – Claiming to be the richest collection of free online calculators, it offers a large number of specific calculators including mortgage and loan calculators and a number sequence calculator.

Math.com – A collection of specific calculators including trigonometry, probability and finance calculators.

List of Online Calculator Lists

Looking for something not on this list? Here are some other great lists of web-based calculators (I’ll be adding to this as I come across new lists):

Numa - A list of calculators for traders looking to price options, etc.

List of Online Graphing and Scientific Calculators - The title says it all really – if you’re after a graphical calculator, this could be a good place to start.

Top 10 Online Calculator Directories – This is getting a bit meta now – as this is itself a list of online calculator lists, it should really be in its own list. Oh well!

Well that’s it for now! If you know of a web-based calculator which isn’t on this list, but should be, please let me know in the comments.

The fast, easy and shareable online calculator.



Calcatraz Blog Redesigned… Again

In my ongoing quest to make this a slightly better blog, I've updated the theme: Here are some of the changes: Easier to read - I've made the fonts bigger and given things a bit more space.  Fewer...

Math Questions and Answers Site

I've just set up a Math Questions and Answers section on Calcatraz. The Math Q&A site serves several purposes. First and foremost it is there to let you ask and get answers to math questions / problems that aren't...

Minifying Less Stylesheets

Recently I've been tidying up the stylesheets I use to control the design of the Calcatraz website. This has taken me down a path of trying to minify stylesheets made using the "Less" language. While not difficult,...

Calcatraz Calculator iPhone Improvements

I use Calcatraz Calculator on my iPhone frequently when I'm working stuff out on the move. While I have already created a basic mobile version of the calculator, I prefer to use the main site as the iPhone's display...

Calcatraz for mobiles

Anyone watching the site will have noticed that things have been a bit quiet for the last few months. Calcatraz has definitely not been forgotten, however. I've been busily working away on a complete redesign...
Tags:

Calcatraz, the Fast Online Calculator

Recently a number of changes I made to the calculator have been causing a bit of a performance hit. To counteract that I've been through and made a few simple changes: Removed some external file includes which...

Starfall Math

Starfall.com started out as a free educational resource for teaching children reading through phonetics, but has since grown to add a paid math section, "Starfall Math". The Starfall math section is made up of several...

MathFactCafe

Just found this site which might be useful to some: MathFactCafe. MathFactCafe provides free elementary school level maths worksheets, which you can print out and use at home or in the classroom. Math Fact Cafe...

Pool Geometry

After reviewing the Coolmath Games site  I find myself returning to play one game from time to time: Pool Geometry. Yes, I know the site is aimed at kids, but the Pool Geometry game is really addictive. Pool...

1 to “List of Online Calculators”


  1. Matt says:

    Hi! I thought that as you have a Calcatraz typing test, you might be interested in typing races and lessons here: http://keyboard-racing.com/ Hope this can be useful!



Leave a Reply