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Percentage Calculator Online Free
Calculate percentages, percentage changes, and what percent X is of Y.
percent Percentage Calculator Online Free
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Our free percentage calculator covers the three most common percentage problems: finding what X percent of a number is (e.g., '15% of 200'), finding what percentage one number is of another (e.g., '30 is what % of 200?'), and calculating the percentage change between two values (e.g., from 80 to 100 = +25%). Results update instantly as you type — no submit button needed.
Frequently Asked Questions
How do I calculate 15% of 200? expand_more
Use the '% of a number' mode: enter 15 in the percentage field and 200 in the number field. The result is 30.
How is percentage change calculated? expand_more
Percentage change = ((new value - old value) / old value) × 100. A positive result means an increase, negative means a decrease.
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