Percentage Calculator
Work out percentages, totals, and shares in seconds.
CalculatorsLast updated August 2026
10% of 20020
Result · 20
Of value · 200
How to use it
- 1Choose a mode: "X% of Y", "X is what % of Y", or "% change".
- 2Enter your two numbers — the field labels update to match the mode you picked.
- 3Read the result instantly below, compare the two values on the bar chart, and copy the result with one click.
Example
To find 20% of 150: enter 20 as the percentage and 150 as the value in “X% of Y” mode. The result is 30, since 20% of 150 = (20 ÷ 100) × 150.
How it works
This calculator covers three common percentage problems: finding X% of a value (X ÷ 100 × Y), finding what percent one number is of another (X ÷ Y × 100), and finding the percentage change between two values ((Y − X) ÷ |X| × 100). Pick the mode that matches what you're solving for — a bar chart compares the two numbers visually, and the result copies with one click.
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