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Utility Calculators & Tools

Percentage, unit and everyday utility calculators.

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Percentage Calculator Five everyday percentage calculations in one place: % of a number, what %, % change, increase/decrease and reverse percentage.
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Some calculations come up every day: what is 18% GST on this bill, how much is a 30% discount, what percentage did I score, how much did prices rise. Our utility calculators answer them instantly with clear working so you can check the logic yourself.

Each tool is designed for mobile first, works offline once loaded, and keeps your numbers on your device. Use them for shopping, salary negotiations, exam results, business invoices or homework.