Percentage Calculator
Calculate percentages, percentage increase, and find the whole number.
Free Online Percentage Calculator
Our Percentage Calculator is a versatile mathematical tool designed to solve all your percentage-related problems instantly. Whether you need to calculate Percentage Of a number, find What Percentage one number is of another, or determine the Percentage Change between two values, this tool handles it all.
How to use the Percentage Calculator:
- Percentage Of: Enter a percentage and a value to find the result (e.g., "What is 20% of 150?").
- What Percentage: Enter a part and a whole to see the percentage relation (e.g., "50 is what % of 200?").
- Percentage Change: Enter an old value and a new value to calculate the increase or decrease (e.g., "From 100 to 150 is a +50% increase").
Real-world uses for percentages
Percentages are everywhere in daily life. You can use this tool to calculate discounts during sales (Percentage Of), figure out your tips at a restaurant, determine tax rates, or analyse financial growth (Percentage Change). Our tool provides instant feedback with formula visualisations, so you standardise your maths homework or double-check your business metrics with confidence.