What is 20% of 500?
Multiply 500 by 20 and divide by 100. The result is 100.
Percentage calculator
Calculate a percentage of any number instantly.
Calculation details
Change the values to update the result instantly.
How it works
Calculate a percentage of any number instantly. This free estimate is for planning purposes. Verify financial and tax decisions with a qualified professional.
How to calculate a percentage
Use the formula percentage value = number × percentage rate ÷ 100. The calculator applies the same formula instantly and keeps decimal results when needed.
Percentage of a price
To find 15% of an $80 price, calculate 80 × 15 ÷ 100 = $12. For a discount, subtract $12 from the original price.
Convert a percentage to a decimal
Divide the rate by 100 before multiplying. For example, 7.5% becomes 0.075.
Frequently asked questions
How do I calculate a percentage of a number?
Multiply the number by the percentage rate, then divide by 100. For example, 20% of 500 is 500 × 20 ÷ 100 = 100.
What is 15% of $80?
Multiply 80 by 15 and divide by 100. The percentage value is $12.
What does the percentage calculator calculate?
Calculate a percentage of any number instantly.
Is this calculator free to use?
Yes. You can change the values and calculate as often as you need without creating an account.
How accurate is the result?
The result is an estimate based on the values you enter. Rates, fees, taxes and personal circumstances can change the final amount.