Percentage Calculator Online
Perform quick percentage ratios and proportional calculations.
Runs entirely in your browser
What is X% of Y?
What is% of
Result: 30
Rate Percentage Calculator4.7(96 votes)Rate Percentage Calculator
How to use Percentage Calculator
- 1Select the type of percentage calculation: X% of Y, what percentage is X of Y, or percentage change.
- 2Enter the relevant numbers in the fields that appear.
- 3The result is calculated instantly as you type.
Privacy & security
All percentage calculations run in your browser. No data is transmitted to any server.
Calculations run locally in your browser. No data is sent to any server.
Frequently asked questions
What types of percentage calculations are supported?
Find X% of a number, find what % one number is of another, percentage increase/decrease, add/subtract a percentage, and percentage difference between two values.
How do I calculate a percentage increase?
Percentage increase = ((New Value - Old Value) / Old Value) × 100. For example, from 80 to 100 is a 25% increase.
How do I calculate the original price before a discount?
Original Price = Discounted Price / (1 - Discount%/100). For a 20% discounted item at ₹800: original = 800 / 0.8 = ₹1,000.