User Guide

Online Calculator — Expressions and History

Calculate expressions online, continue from a result and review recent calculations.

How to use

1. Enter numbers and operators. The +, −, × and ÷ buttons beside the input heading insert at the cursor or replace the selection, then return focus to the input. × and ÷ insert * and / in the expression. Press Enter or Calculate to run the expression.
2. The result replaces the input so you can continue calculating. History lists the newest calculation first.
3. Use the copy icon to copy a result. Clearing input keeps history; clearing history keeps the current input.

Input and output example

(125 * 8) + 30

1030

1030 / 2

515

Background knowledge

* / %

Parentheses are evaluated first; multiplication (*), division (/) and remainder (%) precede addition and subtraction. 2 + 3 * 4 is 14, while (2 + 3) * 4 is 20. % means remainder, not percentage: 10 % 3 is 1.

Notes

• Expressions are parsed using supported operators; JavaScript code is not executed.
• History exists only in page memory and clears on reload. Decimal results are approximate.
• % calculates the division remainder, not a percentage. Example: 10 % 3 = 1.

Frequently asked questions

What can I use this online tool for?

Calculate expressions online, continue from a result and review recent calculations.

Can I continue calculating from the result?

A successful result replaces the input. Add another operator to continue; the original expression and result remain in history, newest first.

How do I enter multiplication and remainder?

Use * for multiplication, / for division and % for remainder: 10 % 3 is 1. Parentheses and signs are supported. Decimal results may be approximate.

Baro Work is a collection of tools with no login. Inputs and results are not stored on the site server or in browser storage. See the translation and DNS guides for external transfers.