Unit Converter

Convert common units instantly: length, mass, time and temperature. No sign-up, no paywall.

How it works

Choose a category, type a value, and pick “from” and “to” units. Temperature uses proper formulas (not simple multiplication).

Instant

Value

From

Tip: conversions update when you click Convert (keeps it predictable and avoids jitter while typing).

Result

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Full precision

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Units are based on standard SI conversions. Temperature uses exact formulas (C↔F↔K).

DIY & building: Convert millimetres, inches, feet, and metres when following plans or ordering materials.
Shipping & parcels: Convert grams, kilograms, pounds, and ounces for courier limits and postage calculators.
Fitness & health: Convert kilograms ↔ pounds or stone for tracking weight goals.
Cooking & timing: Convert minutes, hours, days, and weeks for schedules and project planning.
Temperature: Convert Celsius ↔ Fahrenheit (and Kelvin) for recipes, travel, and international specs.

Are the conversions accurate? Yes — standard conversion factors are used. Temperature uses proper formulas, not simple multiplication.

Do you store my values? No — conversions run locally in your browser.

Can you add more units? Yes. If you want area, volume, speed, or currency, send a request via the Contact page.

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