Percentage Calculator — Calculate Percentages Free Online
UtilityCalculate percentages, percentage increase, decrease, and what percentage X is of Y. Instant results with copy button. Free online percentage calculator — no sign-up.
Basic Percentage
What % is X of Y?
Add / Subtract a Percentage
About the Percentage Calculator — Calculate Percentages Free Online
Our free percentage calculator handles all common percentage calculations — what percentage one number is of another, finding a percentage of a number, percentage increase or decrease, and adding or subtracting a percentage from a number. All results update instantly as you type. Used by students, shoppers, business analysts and finance professionals.
How to Use the Percentage Calculator — Calculate Percentages Free Online
- 1
Basic Percentage: Enter a percentage and number to find that percentage of the number.
- 2
What % is X of Y: Enter two numbers to find the percentage the first is of the second.
- 3
% Increase/Decrease: Enter two numbers to see the percentage change between them.
- 4
Add/Subtract %: Enter a number and percentage to add or subtract it.
Frequently Asked Questions
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide by 100. Example: 20% of 500 = (20 × 500) ÷ 100 = 100.
How do I calculate percentage increase?
((New - Old) ÷ Old) × 100. Example: 200 to 250 = ((250-200)÷200)×100 = 25% increase.
How do I find what percentage X is of Y?
(X ÷ Y) × 100. Example: 75 out of 200 = (75÷200)×100 = 37.5%.
How do I calculate a discount price?
Price × (1 - discount/100). Example: £50 with 20% off = 50 × 0.8 = £40.
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