Mug sizes are listed in different units, and a mug that looks large can hold less than you expect. This guide converts common sizes so you can pick the right one for how you drink coffee.
Quick size chart
- Espresso cup: 60 to 90 ml (2 to 3 oz)
- Small cup and saucer: 180 to 200 ml (6 to 7 oz)
- Standard mug: 300 to 350 ml (10 to 12 oz)
- Large mug: 400 to 500 ml (13.5 to 17 oz)
To convert, 30 ml is about 1 US fluid ounce. Capacity listed on a product page is usually the brim-full volume, so a mug holds slightly less when you leave room for milk or to carry it.
Which size for which drink
Espresso and Turkish coffee
Choose a small cup, 60 to 90 ml. For something more formal, a cup and saucer such as the European Bone China Coffee Cup and Saucer Set, 200ml (from $44.99) works well for a macchiato or cortado.
Cappuccino and latte
A 200 to 300 ml cup gives room for milk and foam. The Handmade Japanese-Style Porcelain Coffee Mug, 200ml (from $49.99) suits a small flat white, and the Retro Hourglass Ceramic Coffee Mug, 300ml (from $34.99) fits a latte.
Drip, pour-over and French press
These brew larger amounts, so a 350 ml mug is a good fit. The Kiss Cat Handmade Ceramic Coffee Mug, 350ml (from $44.99) comes in a gift box.
Big mornings and desk use
If you refill rarely, go for 500 ml. The Marble Vintage Ceramic Coffee Mug with Lid, 500ml (from $34.99) has a lid to keep coffee warmer, and the Cartoon Ceramic Coffee Mug, 500ml, 3-Piece Set (from $24.99) suits a household.
Other things to check
- Handle shape. A wider handle is comfortable for large mugs.
- Material. Ceramic and porcelain hold heat better than thin glass.
- Care. Check the product page for microwave and dishwasher notes.
- Weight. Heavier stoneware stays put on a desk but is tiring to carry.
Browse the full range in our coffee mugs category, or see best coffee mugs for a home office.
Match mug to brew
If your coffee gets cold before you finish, try a smaller mug or one with a lid. If you want to keep it hot for hours, see how to keep coffee hot longer.
FAQ
How many ounces is a standard coffee mug?
Most are 10 to 12 oz, or about 300 to 350 ml.
Is 500 ml too big for coffee?
It holds about 17 oz, which is large. It suits long drinks or slow sipping.
What size is a gift mug?
A 300 to 350 ml mug is the safest choice for most people.
