Percentage Calculator
Calculate percentages instantly. Find X% of Y, percentage change, discounts, tips, and more — 6 calculator modes in one free tool.
What is X% of Y?
About This Tool
- 6 calculator modes: percent of, what percent, change, apply, discount, tip
- Real-time calculation — results update as you type
- Shows formula and steps for every calculation
- Completely free with no registration required
Frequently Asked Questions
It provides 6 different modes to calculate percentages: find X% of Y, determine what percentage one number is of another, calculate percentage change between two values, apply a percentage increase or decrease, compute discounts, and split tips.
Each mode uses standard formulas. For example, X% of Y = (X/100) × Y. Percentage change = ((New − Old) / |Old|) × 100. All formulas are shown below each result.
Enter the original price and discount percentage. It instantly shows the final price and how much you save. For example, 20% off $50 = $40 (you save $10).
Use the '% Change' mode. Enter the old value and the new value. A positive result means an increase, a negative result means a decrease. For example, from 80 to 100 = +25%.
Yes, completely free with no registration or limits. Use all 6 calculator modes as much as you want.