It’s a general-purpose calculator for everyday sums and for school or work maths. It has a basic mode for fast arithmetic and a scientific mode with trigonometry, logarithms, powers, roots and factorials.
Tap the keys or type on your keyboard. While you type, the answer previews above the keypad. Press equals to lock it in and save it to your history. Press any operator straight after equals to carry on from the result.
Sine, cosine and tangent and their inverses work in degrees or radians. Ln is the natural logarithm and log is base ten. The square root, the square and the power key cover roots and exponents, and n! gives the factorial of a whole number.
The calculator follows the usual rules: brackets first, then powers, then multiplication and division, then addition and subtraction. So 2 + 3 × 4 is 14, not 20. Use brackets when you want a different order.
Frequently asked questions
Type a number and press %, and it becomes hundredths: 50% is 0.5. After a plus or minus it works on the number before it, so 200 + 10% gives 220.
It sets the unit for sine, cosine and tangent. Deg means degrees, so sin(90) is 1. Rad means radians, so sin(90) is about 0.894.
Yes. Click the calculator and type numbers and operators. Press Enter for equals, Backspace to delete and Escape to clear.
Press equals, then use the export button to download the result as a PNG image, PDF, CSV, JSON or text file, or to print or share it.
Quick examples to try
Type 2 + 3 × 4 and the answer previews as 14, because multiplication happens before addition. Type 200 + 15% and you get 230, since the percent key works on the number before it. Type (8 + 4) ÷ 3 to see brackets change the order. For a loan or a tip, use the dedicated tools instead, such as the loan payment calculator or the tip calculator, which add the extra figures a plain calculator cannot.
History and keeping your work
Every sum you complete is saved to the history list, with the answer beside it. Tap an entry to bring it back, and use Clear to wipe the list. Results can be copied or exported, which is useful for homework, receipts and quotes.
Scientific functions in practice
In scientific mode, set Deg for angles in degrees. sin 30 gives 0.5, cos 60 gives 0.5 and tan 45 gives 1. The log key is base 10, so log 1000 is 3, and ln is the natural logarithm, so ln of e is 1. The square root of 144 is 12, 5! is 120 and 2 raised to the power 10 is 1,024. If an answer looks odd, check that you are in the right angle mode, since sin 90 is 1 in degrees but about 0.894 in radians. Use the |x| key to take an absolute value, and Ans to reuse the last result.
When you need a specialist calculator
A general calculator is the right tool for arithmetic and basic maths, but many everyday jobs have rules built in. Percentages have seven different questions, so the percentage calculator asks which one you mean. Dates need leap years, so use the days between dates calculator. Tax, interest and loans need the right formula and rates, and the finance calculators include them. Browse every category from the home page.
