Convert Quart (US) (qt (US)) to Quart (UK) (qt (UK)) instantly.
About these units
Quart (US) (qt (US))
A US quart equals 32 US fluid ounces or 946 milliliters, exactly 1/4 of a US gallon. It is commonly used for milk, juice, motor oil, and household chemicals. The quart's convenient scale makes it ideal for medium-sized liquid quantities—larger than a pint but smaller than a gallon. It remains widely used in American kitchens, automotive maintenance, and everyday shopping. Like other US customary units, the quart persists because consumers and industries have longstanding infrastructures built around it.
Quart (UK) (qt (UK))
A UK quart equals 1/4 of a UK gallon, approximately 1.13652 liters, making it significantly larger than the US quart. Historically used for beer, milk, and household liquids, the UK quart was a staple of British commerce for centuries. In many traditional recipes and food instructions, quarts remain in archival use. The quart illustrates the divergence between US and UK systems following the 18th-century measurement reforms, reflecting how cultural and regulatory environments shape unit evolution.