Scientific Calculator
Type it out, keep the history
Input
Type numbers and operators directly. Enter = calculate, Esc = clear, Backspace = delete one character.
History
Nothing calculated yet
Type an expression and press Enter — your history builds up here.
Clicking calculator buttons one at a time is slower than typing the sum. Write the whole expression, press Enter, and it stays in the history so you can adjust it rather than retyping.
How to use
- 1 Type an expression such as (120+80)*1.1.
- 2 Press Enter to evaluate it.
- 3 Previous calculations stay in the history below.
- 4 Click any history entry to reuse that expression.
Frequently asked questions
What operators are supported?
The four basics plus parentheses, percentages and exponents, with standard precedence — multiplication and division before addition and subtraction.
What are the keyboard shortcuts?
Enter evaluates, Escape clears everything, Backspace deletes one character. Numbers and operators go straight in without clicking first.
Is the history saved?
Only for the current page. Refresh and it clears — nothing is written to storage or sent anywhere.