General Calculator
A clean, keyboard-friendly calculator with history for everyday calculations.
What this calculator handles
Use the keyboard for ordinary arithmetic and percentages, then keep several steps visible in the history. It is useful for checking a subtotal, applying a discount, splitting a bill or retracing a short sequence without typing everything again.
Check before deciding
The history belongs only to the current browser session and clears when the session ends. This tool performs arithmetic; it does not apply tax, lending or accounting rules, so verify the inputs and use a saved worksheet when you need a permanent record.
Frequently asked questions
What can the general calculator do?
It handles everyday arithmetic — add, subtract, multiply, divide and percentages — with a running history so you can review previous results.
Does it work with the keyboard?
Yes. You can type numbers and operators directly and press Enter to evaluate, which makes quick calculations fast and comfortable.
How do I calculate a percentage?
Enter the number, press the percent key, then the operation — for example 200 × 15% gives 30. The history panel keeps each step so you can retrace the math.
Is my calculation history saved anywhere?
No. The history lives only in your browser tab for the current session and is never uploaded or stored, so your numbers stay private.