Percentage Calculator — Quick Percentage Math
Calculate percentages, percentage changes, and percentage differences. "What is 15% of 200?" or "30 is what percent of 120?" — answered instantly.
Faster than pulling up a calculator app for common percentage questions. Useful for discounts, tips, tax calculations, grade computations, and everyday math.
What is X% of Y?
Calculate a percentage of a number
Frequently Asked Questions — Percentage Calculator
X% of Y, what percent X is of Y, percentage increase/decrease, and finding the original value before a percentage change.
Yes. Enter cost and selling price to get markup percentage, or enter cost and desired margin to get the selling price.
Yes. Negative values work for decreases and discounts.
More Utilities
Pomodoro Timer
Focus timer with work and break intervals.
Stopwatch & Lap Timer
Precise stopwatch with lap tracking and statistics.
Countdown Timer
Countdown to a specific date and time with live display.
Decision Wheel
Spin a wheel to randomly pick from your options.
Random Picker
Pick random items from a list. Great for giveaways and decisions.
List Randomizer
Shuffle and randomize the order of items in a list.
Random String Generator
Generate cryptographically random strings and passwords.
Emoji Picker
Browse, search, and copy emojis to clipboard. Organized by category.