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Three modes: 'What is X% of Y?', 'X is what % of Y?', and '% change from X to Y'. Live arithmetic with formula explanation.
This percentage calculator runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
Yes - reported as negative percent.
Same browser-only philosophy. Free, no signup, no upload.
Add or remove VAT at any rate - UK 20%, EU rates, or custom.
Calculate monthly loan payment, total interest, and amortization schedule.
Calculate compound interest with principal, contributions, rate, and frequency.
Calculate exact age in years, months, days, hours, and minutes from any birth date.
Calculate Body Mass Index (BMI) in metric or imperial with category breakdown.
Equated Monthly Installment calculator with principal/interest split.
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