Solve arithmetic expressions in a modern and responsive interface with physical keyboard support and full validation.
Solve arithmetic expressions in a modern and responsive interface with physical keyboard support and full validation.
Use `+`, `-`, `*`, `/`, `%` and parentheses. Percentage converts the preceding number into a percent decimal.
Enter an expression to calculate.
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Invalid expressionEnter a valid arithmetic expression to evaluate in real time.
The tool solves arithmetic expressions with addition, subtraction, multiplication, division, percentage, and parentheses, updating in real time.
No. The expression is validated and processed by a custom parsing routine, keeping the calculation flow controlled.
The percentage symbol transforms the preceding number into its percent form, equivalent to dividing that value by 100.
Yes. The calculator accepts physical keyboard input for numbers, operators, parentheses, Enter, and Backspace.
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Open toolThe calculator is for anyone who needs a quick calculation with parentheses and operator precedence: students, people reviewing amounts, and anyone on a phone or computer.
The expression is read by a dedicated calculation routine that respects operator precedence and parentheses.
× and ÷ are solved before + and −.
2 + 3 × 4 equals 14, not 20.
Whatever is inside parentheses is calculated first.
(2 + 3) × 4 equals 20.
The % sign divides the number before it by 100.
200 × 10% equals 20.
Type the expression below and check the result.
(2 + 3) × 4
20
Without the parentheses, the same sequence would give 14, because the multiplication would be done first.
The focus is basic arithmetic.