Utility ToolsFree
Percentage Calculator
Calculate percentages in multiple modes: find X% of Y, find what percentage X is of Y, calculate percentage increase or decrease, and find the percentage difference between two numbers. Instant results with formula explanations. No signup required.
Updated June 2026
- 1Choose a calculation type
- 2Enter the numbers
- 3View the result
How to use Percentage Calculator
- 1
Choose a calculation type
Pick the kind of percentage question you need answered, e.g. 'X% of Y' or percentage change.
- 2
Enter the numbers
Type the values into the relevant fields.
- 3
View the result
The answer updates instantly as you type.
Frequently asked questions
Everything you need to know about percentage calculator.
Five modes: (1) What is X% of Y? (2) X is what percentage of Y? (3) What is the percentage increase from X to Y? (4) What is the percentage decrease from X to Y? (5) What is the percentage difference between X and Y?
Yes. Each result displays the formula alongside the answer so you can understand and replicate the calculation manually.
Use 'What is X% of Y?' mode — enter your tip percentage (e.g., 15) and the bill amount. The result is the tip amount.
Use 'Percentage decrease' mode — enter the original price and the discounted price to find the discount percentage, or enter the original price and discount percentage to find the discounted price.
Use 'Percentage increase' mode — enter the old value and the new value to see the percentage growth between them.
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