Free Percentage Calculator Online

A jacket is on sale for 35% off — what is the actual price? Your salary went from $62,000 to $68,500 — what percent raise is that? You scored 47 out of 60 on a test — what percentage did you get? Our free online Percentage Calculator answers all four common percentage questions in one place: "what is X% of Y", "X is what percent of Y", "what is the percentage change from X to Y", and the reverse case "Y is X% of what number". Pick the mode, type the numbers, and the answer appears immediately along with the formula being applied so you can verify the maths or learn the relationship if you are a student. The four modes cover essentially every percentage problem people encounter in everyday life: shopping discounts and sales tax calculations, grade and test score conversions, salary raises and rent increases, tip calculations (though the [Tip Calculator](/tools/tip-calculator) has dedicated split-bill features), interest rate questions, and the kind of "percent change" stat reporters use when comparing this year to last year. The calculator is precise to as many decimal places as the input justifies, which means you do not get the rounding artefacts that mental shortcuts produce. Real-world examples: confirming a Black Friday discount really is what the sticker claims; calculating the tip on a restaurant bill split between four friends; checking whether a 12% raise actually keeps up with 9% inflation; sanity-checking a stock report that says a price moved from $43.20 to $47.85. Everything runs in your browser; no signup, no daily limit, no data sent anywhere. For related calculations the [GST Calculator](/tools/gst-calculator) handles tax-inclusive pricing and the [EMI Calculator](/tools/emi-calculator) breaks down loan payments by interest percentage.