How Many ml in a Mug?

🇬🇧 UK Standard

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Frequently Asked Questions

How many ml in a standard UK mug?

A standard UK mug holds about 250 ml (roughly one cup of tea). Many modern mugs are larger — 300 ml to 350 ml — and extra-large mugs can hold 400 ml or more.

Is a mug the same as a cup?

No. A "cup" in UK baking is a precise measurement of 284 ml, while a mug is a drinking vessel with no fixed size — usually 250-350 ml. For accurate baking, use a measuring cup, not a mug.

Can I use a mug to measure ingredients?

It's risky. Because mugs vary from about 250 ml to 400 ml, two people using "one mug of flour" will get different amounts. For reliable results, weigh ingredients or use a proper measuring cup.

Also try: UK Baking Units — The Complete Guide · All Baking Volume Converter