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Percentage Calculator
Free online percentage calculator. Calculate percentages, percentage increase/decrease, and what percent one number is of another.
Result
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Calculate any percentage instantly. Whether you need to find a discount, calculate tax, work out your grade, or figure out a tip — this free percentage calculator does it all in seconds.
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FREQUENTLY ASKED QUESTIONS
How do I calculate 20% of a number?
Multiply the number by 0.20. For example, 20% of 150 = 150 × 0.20 = 30.
What is percentage increase?
Percentage increase = ((New Value - Old Value) / Old Value) × 100. For example, from 80 to 100 is a 25% increase.
How do I calculate a discount?
Multiply the original price by the discount percentage, then subtract. Example: 20% off $50 = $50 × 0.20 = $10 discount = $40 final price.
What percentage is 30 out of 50?
Divide 30 by 50 and multiply by 100: (30/50) × 100 = 60%.