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Free percentage calculator. Find what percent one number is of another with the formula and worked examples. Fast, accurate and no sign-up needed.
Enter your values and select Calculate to see the result.
Percentages describe one number as a share of another, out of 100. They appear in grades, survey results, discounts, interest rates and statistics, so being able to calculate them quickly is a daily skill.
This calculator answers the most common question: what percent is one number of another? Enter the part and the whole, and it divides one by the other and scales the result to 100. For finding a percentage of a number, a discount or a change over time, use the related calculators linked below.
(part ÷ whole) × 100
25 is 12.50% of 200.
Estimates only. This calculator gives a general estimate and is not financial, tax or legal advice. Rates, fees and rules vary by country and situation. Read our disclaimer.
Divide the part by the whole and multiply by 100. For example, 25 out of 200 is 25 ÷ 200 × 100 = 12.5%.
Yes. If the part is 300 and the whole is 200, the result is 150%, which means the part is one and a half times the whole.
This calculator answers “what percent is A of B?”. Percentage change compares an old and a new value; use the ROI calculator for that kind of growth or loss.
Dividing by zero has no meaning, so the whole must be greater than zero.