Baking Volume Converter
Convert ml, litres, UK cups, US cups, tablespoons, and teaspoons — note UK and US cups differ.
Last updated: 2026-07-19
Conversions for 1 cup (UK)
UK cup
1cup (UK)
Millilitres
284.13ml
Litres
0.2841l
US cup
1.201cup (US)
Tablespoon
18.942tbsp
Teaspoon
56.826tsp
🔒Calculated in your browser. No data is uploaded — GDPR friendly.
The one that catches people out: a UK cup (284 ml) and a US cup (237 ml) are not the same! American recipes use a smaller "1 cup" than British ones. This tool handles UK cups, US cups, millilitres, tablespoons (tbsp = 15 ml), and teaspoons (tsp = 5 ml) — for recipes from either side of the Atlantic.
Frequently asked questions
How many ml in a UK cup?
1 UK cup = 284 ml (exactly 284.13 ml). To convert ml to UK cups, divide by 284: so 500 ml ≈ 1.76 UK cups, and 250 ml ≈ 0.88 UK cups. This is the cup used in older British recipes.
Is a UK cup the same as a US cup?
No. A UK (imperial) cup is 284 ml; a US cup is 237 ml — about 17% smaller. Using a US cup for a UK recipe gives you less than intended. This is a common trap when baking American recipes in the UK.
How many ml in a tablespoon?
1 tablespoon (tbsp) = 15 ml, and 1 teaspoon (tsp) = 5 ml. These are the international standard used in UK recipes. (Note: an Australian tablespoon is 20 ml, but this tool uses the 15 ml standard.)
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Also try: How Many ml in a Mug? · UK Baking Units — The Complete Guide