Percentage Calculator
Calculate percentages easily with multiple calculation modes.
What is X% of Y?
What is% of?
Quick Reference
Common Percentages
10% = 1/10 = 0.1
25% = 1/4 = 0.25
50% = 1/2 = 0.5
75% = 3/4 = 0.75
Formulas
X% of Y = (X/100) × Y
X is ?% of Y = (X/Y) × 100
% Change = ((New-Old)/Old) × 100
Results are calculated in real-time as you type. All calculations are done in your browser.