Percentage Calculator
Calculate percentages easily. Find what percent one number is of another, percentage increase/decrease, and more. 100% Free - No registration required!
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Calculate percentages easily. Find what percent one number is of another, percentage increase/decrease, and more. 100% Free - No registration required!
Choose a calculation mode and enter values to get instant results.
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign (%). For example, 20% means 20 out of 100.
To find X% of Y, use the formula: (X / 100) × Y. For example, 20% of 500 is (20/100) × 500 = 100.
Use the formula: (X / Y) × 100. For example, 25 is (25/200) × 100 = 12.5% of 200.
Use the formula: ((New - Old) / Old) × 100. A positive result means increase, negative means decrease. For example, 100 to 120 is a 20% increase.
Yes, this percentage calculator is completely free to use. No registration, no hidden fees, and no limitations. You can use it as many times as you want.
Common uses include: calculating discounts, tax amounts, profit/loss percentages, exam scores, interest rates, population growth, and many more everyday calculations.