Unit365 › About Unit365

About Unit365

About Unit365 — a free, fast, and accurate online unit converter supporting length, weight, volume, temperature, area, power, and speed.

Unit365 is a free online unit converter that lets you convert between 60+ units across 7 categories. No sign-up, no ads — just fast, accurate conversions.

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Instant Results

Real-time as you type

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High Accuracy

Up to 10 decimal places

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US & Metric

Both systems supported

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100% Free

No accounts or paywalls

Conversion Categories

Length: meters, feet, inches, miles, kilometers, yards, cm, mm
Area: sq ft, sq m, acres, hectares, sq miles
Volume: gallons, liters, quarts, pints, cups, mL, tbsp, tsp
Weight: pounds, kg, ounces, grams, stone, slugs
Temperature: Fahrenheit, Celsius, Kelvin
Power: horsepower, watts, kW, BTU/h
Speed: mph, km/h, knots, m/s, Mach

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