Unit Converter

How it works

Choose a category (length, weight, temperature, or volume), enter a value, and pick the units to convert between. Results update instantly.

About Unit Converter

Informational only, not professional advice. Report an error.

The recipe says 175 cm and your American brain freezes; or you are packing for Europe and the airline limit is 23 kg. Recipes, science homework, travel, and DIY projects mix measurement systems, and guessing conversions is how people miss flights or ruin bakes.

Enter value, from-unit, to-unit, and category (or let the tool infer from units). Conversion goes via a base unit per category, meters for length, kilograms for mass, liters for volume, Celsius for temperature. Temperature uses affine conversion (°F = °C×9/5 + 32), not a simple multiplier.

Volume gallons here are US liquid gallons, not imperial UK gallons. Cooking cups are US customary. Road trip speed limits in km/h versus mph and luggage weight limits in kg versus lb are everyday scenarios where picking the wrong category produces nonsense, double-check the unit labels.

For precise engineering or medical dosing, confirm significant figures and regulatory unit requirements beyond this consumer tool. 2.5 liters to US cups for a recipe, 160 lb to kg for a gym app abroad, same engine, different categories.

Output precision follows engine formatting, extreme values may use scientific notation in the UI. Category picker disambiguates oz (fluid versus weight) when both exist.

UK imperial gallons, stone, and specialty engineering units may be absent. Medical dosing always verify with a professional. Baking by weight (grams) versus volume (cups) for flour varies by humidity, weight scales beat cup conversions for serious baking.

Running pace (minutes per mile versus minutes per kilometer) is a mental conversion runners use constantly, convert distance first, then divide time by the new distance for race planning abroad. Stone and pounds mix in UK body weight references, convert to kg first when a health app expects metric even if the form shows imperial labels. Baking flour by volume versus weight varies with humidity and scoop technique, serious bakers weigh in grams even when a recipe lists cups, because mass conversions are more repeatable than cup conversions.

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