Cups to Liters Converter
4.23 US cups per litre — or exactly 4 if you use metric cups
One litre holds 4.23 US cups. If your recipe uses 250 ml metric cups, a litre is exactly 4 cups.
A litre is 4.23 US cups. The number is annoying, and that is precisely why the metric cup was standardised at 250 ml — it makes a litre exactly four cups.
Litres show up in stock, brine, soup, cordial and ice-cream bases: anything made in quantity where cups stop being a sensible unit.
Reference table
| litres | cups | millilitres | quarts |
|---|---|---|---|
| 0.25 L | 1.06 cup | 250 ml | 0.264 qt |
| 0.5 L | 2⅛ cup | 500 ml | 0.528 qt |
| 0.75 L | 3⅛ cup | 750 ml | 0.793 qt |
| 1 L | 4¼ cup | 1000 ml | 1.06 qt |
| 1.5 L | 6⅓ cup | 1500 ml | 1.59 qt |
| 2 L | 8½ cup | 2000 ml | 2.11 qt |
| 2.5 L | 10⅝ cup | 2500 ml | 2.64 qt |
| 3 L | 12⅔ cup | 3000 ml | 3.17 qt |
| 4 L | 16⅞ cup | 4000 ml | 4.23 qt |
| 5 L | 21⅛ cup | 5000 ml | 5.28 qt |
Litres to cups at a glance
A US quart and a litre are close enough that recipes often treat them as the same thing. The litre is about 6% larger. For a soup that is irrelevant; for an ice-cream base where sugar ratio matters, it is not.
- 1 litre = 4.23 US cups = 4 metric cups
- 750 ml = 3.17 US cups = 3 metric cups
- 500 ml = 2.11 US cups = 2 metric cups
- 250 ml = 1.06 US cups = 1 metric cup
- 1 litre = 33.8 US fluid ounces = 1.06 US quarts
Why brines and stocks should be measured in litres
Brine strength is a ratio of salt to water, and ratios are easy in litres and horrible in cups. A 5% brine is 50 g of salt per litre of water. Expressed in cups it becomes about 3½ tablespoons of table salt per 4¼ cups, which no one wants to scale.
The same logic applies to stock reduction and syrup: starting from a round litre makes every downstream calculation readable.
Litres, quarts and gallons side by side
| Metric | US cups | US quarts | US gallons |
|---|---|---|---|
| 500 ml | 2.11 | 0.53 | 0.13 |
| 1 litre | 4.23 | 1.06 | 0.26 |
| 2 litres | 8.45 | 2.11 | 0.53 |
| 3.79 litres | 16.0 | 4.0 | 1.0 |
| 5 litres | 21.1 | 5.28 | 1.32 |
Frequently asked questions
How many cups are in a liter?
A litre holds 4.23 US customary cups, or exactly 4 metric (250 ml) cups.
How many cups is 2 liters?
2 litres is 8.45 US cups, or exactly 8 metric cups.
Is a liter the same as a quart?
They are close but not equal. A litre is 1.057 US quarts, about 6% larger.
How many liters is 4 cups?
4 US cups is 0.946 litres. 4 metric cups is exactly 1 litre.