Welcome to Alcula`, home of the Online Scientific Calculator
- New! Online Scientific Calculator - Try the new Advanced Scientific Calculator from Alcula`.
It supports fractions, complex numbers and custom functions. It has an expression history so you can review your previous steps. You can also update a previous expression and all following expressions are updated automatically. A useful resource for students and teachers of mathematics. Read more about it in the blog or check out the instruction manual for a full list of the new features.
- Units conversion. - Convert lengths, areas and weights.
Go to the conversion page to convert between units of measure of length, area or weight.
- Simple Calculator - A virtual 9 digit pocket (!) calculator.
The Virtual Calculator emulates a real pocket calculator. Type on your keyboard or use your mouse to press the buttons.
- Alcula's original Scientific Calculator - An advanced math calculator.
It supports trigonometric functions, logarithm and antilogarithm.
- New! RPN Calculator - A Reverse Polish Notation calculator.
Practice your RPN skills on the internet with this simple RPN Calculator. Javascript required.
- Virtual Suan Pan - Chinese abacus.
Suan Pan (??) is the Chinese name for the Chinese abacus. It has two decks, the lower deck has 5 beads for each rod, the upper deck has two. To use the virtual suanpan, your browser must allow javascript. The version of Suan Pan on this website has 18 rods, you can perform calculations with numbers up to 18 digits.
- Virtual Soroban - Japanese abacus.
Click this link to visit the soroban. Soroban (????) is the Japanese name for the Japanese abacus. Like the Chinese abacus, it has two decks, but the lower deck has 4 beads for each rod and the upper deck has only one. To use the soroban on this site, your browser must allow javascript. The Soroban on this site has 18 rods.
What else is on Alcula'...
- How to calculate percentages with a calculator.
How to work out the percentage of a number when using a calculator that is missing the percent (%) key.
Latest news from Alcula
- Complex Numbers Calculator (The Square Root of -1 is not NaN)
The latest release of the online scientific calculator supports complex numbers. Read more about it on the blog.