Percentage Calculator
Three percentage calculators in one: (1) What is X% of Y?, (2) X is what percent of Y?, (3) X is Y% of what? Also calculates percentage change (increase/decrease) between two values. Shows formula alongside every result.
Loading tool...Loading tool...
Common Use Cases
- Calculate discounts and tax
- Find conversion rates and growth %
- Split bills with tip percentage
- Calculate percentage change between metrics
Frequently Asked Questions
How do I calculate a percentage increase?
Percentage increase = ((new value - old value) / old value) × 100. For example: from 80 to 100 = ((100 - 80) / 80) × 100 = 25% increase.
Related Tools
Statistics CalculatorCalculate mean, median, mode, standard deviation, variance, and more from a list of numbers.Prime FactorizationFind the prime factors of any number. Shows factor tree, GCD, and LCM for two numbers.Number to WordsConvert any number to English words. Handles decimals, negatives, and numbers up to quintillions.
Tool Info
CategorymathAI EnhancementNoData StorageZero retention