Convert volume instantly — type a value, pick your units, and every other common unit updates live below. 100% free, runs entirely in your browser, no sign-up.
Every unit below updates live from the value you enter in the "From" field above.
Liquid volume gets messy fast because "gallon" and "pint" mean different amounts depending on where you are — a UK (imperial) gallon is about 20% larger than a US gallon, a difference that traces back to different historical standardization efforts in the 1800s. This converter uses US customary units for gallon/quart/pint/cup/fl oz, with a separate UK Gallon entry for the imperial measure.
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