The short answer: A standard glass of milk (about 240 milliliters) typically weighs about 240 to 250 grams (8.5 to 8.8 ounces), slightly more than the same volume of water.
Glass of milk weight by type
A glass of milk weighs a little more than water because of dissolved sugars, proteins, and fat. Here are some common pours and their typical weights.
| Type (example) | Typical weight |
|---|---|
| Small glass (180 ml) | about 185 g (6.5 oz) |
| Standard cup (240 ml) | about 245 g (8.6 oz) |
| Large glass (350 ml) | about 360 g (12.7 oz) |
| Pint of milk (473 ml) | about 485 g (1.1 lb) |
What affects glass of milk weight
- Glass size. The volume poured is the biggest factor in weight.
- Fat content. Skim milk is slightly denser than whole milk, which contains more light fat.
- Dissolved solids. Sugars and proteins make milk denser than plain water.
- Temperature. Cold milk is marginally denser than warm milk.
- Plant-based alternatives. Oat or almond milk can differ slightly in density.
- How full the glass is. A brimming glass weighs more than one filled partway.
How glass of milk weight compares
A standard glass of milk weighs about the same as a cup of water plus a touch (around 245 grams), or roughly the same as a medium orange and an apple together.
Frequently asked questions
How much does a cup of milk weigh?
A standard 240-milliliter cup of milk weighs about 245 grams, a little heavier than the same volume of water.
Is milk heavier than water?
Yes, slightly. Milk contains dissolved sugars, proteins, and minerals that make it a bit denser than plain water.
How much does a pint of milk weigh?
A U.S. pint of milk (about 473 milliliters) weighs roughly 485 grams, or just over a pound.
