Six powerful percentage calculation modes — from basic percentages to growth rates, markup, and reverse calculations.
Six modes cover every real-world percentage scenario
Results update as you type — no button press needed.
Basic percent, what %, percent change, add/subtract %, reverse %, and difference.
Every mode displays the math formula so you can learn and verify.
Works perfectly on any device — no app download required.
Select from 6 calculation types at the top.
Type in your numbers — results appear instantly.
The math formula is always shown below.
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A percentage calculator solves common percentage problems instantly — from finding what percentage one number is of another, to calculating percentage increase/decrease, to working out a specific percentage of a value.
Find the exact price after applying a 15%, 25%, or any percentage discount — essential for smart shopping during sales events.
Calculate percentage increase or decrease between two values — useful for tracking sales growth, weight loss progress, or financial returns.
Convert raw marks to percentage scores or calculate the marks needed to achieve a target percentage in exams and assessments.
Calculate GST, VAT, profit margins, tip amounts, and interest rates — all percentage-based calculations done instantly and accurately.
Percentage calculations are among the most universally useful mathematical operations in daily life. The three core types are: finding X% of Y; finding what percentage X is of Y; and finding the original value when a percentage result is known. This calculator handles all three types plus percentage change calculations.