Percentage Calculator
Six calculators for every percentage problem. Find percentages, calculate changes, add tips, increase or decrease values.
What is X% of Y?
Find a percentage of any number
X is what % of Y?
Find what percentage one number is of another
Percentage Change
Calculate the percentage increase or decrease between two values
Increase by %
Add a percentage to a value
Decrease by %
Subtract a percentage from a value
Tip Calculator
Calculate tip amount and total bill
How to Use This Percentage Calculator
This page includes six different percentage calculators for every common scenario. Enter your numbers and the result updates instantly — no need to press a button. Each calculator solves a specific type of percentage problem.
Use "What is X% of Y" for discounts, taxes, and commissions. Use "X is what % of Y" to find ratios. Use "Percentage Change" to compare before-and-after values like prices, revenue, or weight. The tip calculator helps split restaurant bills quickly. All calculations happen in your browser — nothing is stored or sent anywhere.