Volume converter: cups to ml, pints, gallons and fl oz

Type a volume such as 1 cup or 500 ml, or type in any field below. A cup, a pint, a gallon or a fluid ounce is not the same in the US and the UK: the page says which one it used and shows the others.

Free. No ads, no paid extras, no tracking, no sign-up. Nothing you type here is sent anywhere.

Convert

Amount and unit

For example 1 cup, 2 UK pints, 500 ml in cups, 3 tbsp, 1 US gallon in L.

Answer

---

Every unit of a family, together. Choose a family to start from its example; type in any field and the rest follow, and the line above with them. The ring beside a unit makes it the answer.

The link holds the line after the # sign, a part browsers never send to a server, with its meaning and its answer spelt out, so it opens the same conversion anywhere. Copy link also puts it in the address bar, so it stays in this browser’s history.

Nothing is sent and nothing is stored. Every number is worked out in your browser, and the page makes no request after it has loaded. On zeromile.tools it is served with connect-src 'none', so the browser itself refuses any connection its script might try to open.

Definitions

UK (imperial): The gallon is 4.54609 L exactly; the pint an eighth of it (568.26125 mL), the fluid ounce a 20th of a pint (28.4130625 mL).UK Weights and Measures Act 1985, Schedule 1.
US: The gallon is 231 cubic inches, 3.785411784 L exactly; the liquid quart a quarter, the liquid pint an eighth (473.176473 mL), the cup half a pint (236.5882365 mL), the fluid ounce a 128th of a gallon, the tablespoon half a fluid ounce and the teaspoon a third of a tablespoon. The US dry pint and quart are larger and are not on this page.NIST Handbook 44 (2026), Appendix C; NIST Special Publication 811, Appendix B.9.
US food labels: On a US nutrition label a cup means 240 mL and a fluid ounce 30 mL: the US label cup on this page.21 CFR 101.9(b)(5)(viii).
Metric cup and spoons: 250, 15 and 5 mL are cookbook conventions, with no legal definition in the sources read.Penguin Australia conversion chart (a publisher, not a law).
Australian tablespoon: Australian recipes use a 20 mL tablespoon (four teaspoons); New Zealand and the United Kingdom use 15 mL. In Australia the page reads tbsp as 20 mL first, with 15 mL and the US tablespoon one click away. A cookbook convention: no law or standard for it was read here.Penguin Australia conversion chart: “one Australian tablespoon holds 20 ml” (a publisher, not a law).
Litre: A litre is a cubic decimetre; a millilitre is a cubic centimetre, a centilitre 10 mL and a decilitre 100 mL.BIPM, The International System of Units (SI Brochure), 9th edition. Sources read on 10 October 2026.

Kitchen measures in millilitres

measure	millilitres
1 US cup	236.6 mL
1/2 US cup	118.3 mL
1/3 US cup	78.9 mL
1/4 US cup	59.1 mL
1 US tablespoon	14.8 mL
1 US teaspoon	4.9 mL
1 metric cup	250.0 mL
1 US label cup	240.0 mL
1 UK pint	568.3 mL
1 US pint	473.2 mL
1 UK gallon	4,546.1 mL
1 US gallon	3,785.4 mL

Rounded to a tenth of a millilitre.