Calculators

Percentage Calculator

Solve percentage-of, what-percent, and percentage-change problems.

Free Private No signup
Percentage Calculator Private · local processing

What is X% of Y?

% of

Result: —

X is what percent of Y?

is % of

Result: —

Percentage change

to

Result: —

Features

What this tool can do

  • Three common percentage modes
  • Decimal-friendly inputs
  • Instant answers
  • No formulas needed
How to use

Step-by-step guide

  1. 1

    Pick the calculation type you need.

  2. 2

    Enter your numbers.

  3. 3

    Read the result below each block.

Use cases

Who uses this tool?

Discounts & sales
Business margins
Grade calculations
Finance & budgeting
Guide

Percentage calculator for discounts, grades and growth

Solve everyday percentage problems without memorising formulas. Calculate a percentage of a number, reverse “what percent”, or measure percentage increase and decrease for sales, grades and finance.

Three percentage problems people solve most

“What is 18% of 250?”, “40 is what percent of 160?”, and “How much did this grow from 80 to 104?” cover discounts, tip maths, markups, test scores and KPI reporting.

Business and school use cases

Retailers compute sale prices. Students convert marks. Analysts express change week over week. Freelancers estimate tax or fee percentages quickly during calls.

  • Discount and VAT calculations
  • Exam scores and grade weights
  • Revenue and traffic growth
  • Budget variance reporting

Fast, private and decimal-friendly

Enter whole numbers or decimals, pick the mode you need, and read the answer immediately. Nothing is sent to a server — ideal when working with confidential sales figures.

FAQ

Common questions

Can I use decimals?

Yes. All fields accept decimal numbers for precise calculations.