What is it?
The Calculator is a simple everyday calculator that shows the whole sum as you type and keeps a history of your answers.
Who is it for?
Everyone needing quick sums: shopkeepers, students, homemakers and office staff, on a phone or computer.
How to use it
- Tap the keys, or type on your keyboard: digits, + − * /, Enter for =, Backspace and Esc.
- Open History and help to see past sums. Use this again puts an old sum back; Use the answer continues from a result. Clear history empties it.
- Copy puts the result on your clipboard. M+, M−, MR and MC add to, subtract from, recall and clear a memory, as on a shop calculator.
Order of operations
The calculator follows maths rules (BODMAS / PEMDAS): 2 + 3 × 4 = 14, not 20. Pocket calculators that work left to right give 20. Use brackets to be sure: (2 + 3) × 4 = 20.
The % key
200 + 10% means 200 plus 10% of 200 = 220, like most shop calculators. To find 10% of 200 on its own, type 200 × 10%. For other percentage questions, the Percentage Calculator is clearer.
Errors
- Something is missing at the end: the sum ends with an operator or an open bracket.
- Unexpected …: two operators in a row or a typo.
History is kept in this browser only.
Errors and how to fix them
- “Something is missing at the end” or “Unexpected …”: remove a trailing operator or extra symbol.
Open the tool: Calculator
Still stuck?
Contact support. Tell us which tool or page you were using, what you tapped, what you saw, and your phone or computer and browser (for example: Android phone, Chrome). We reply by email.
Questions, or an error not listed here?
Tell us in the comments: what you were doing, the exact message you saw, and your device and browser. We read every comment and add new fixes to this article.