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.

Frequently Asked Questions

What calculation modes are available?▼
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?
Does it show the formula used?▼
Yes. Each result displays the formula alongside the answer so you can understand and replicate the calculation manually.
How do I calculate a tip percentage?▼
Use 'What is X% of Y?' mode — enter your tip percentage (e.g., 15) and the bill amount. The result is the tip amount.
How do I calculate a discount?▼
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.
How do I calculate percentage growth?▼
Use 'Percentage increase' mode — enter the old value and the new value to see the percentage growth between them.