Quarts to Liters
Convert us quart to liter instantly — type a value and read the result, with the exact formula shown.
Example
1 qt = 0.9463529 L, 5 qt = 4.731765 L, 10 qt = 9.463529 L.
How it works
Liter = US quart × 0.9463529. Every value is converted through a single liter base unit using internationally defined conversion factors, so any from/to pair stays consistent.
Good to know
Converting US quarts to liters comes up most often when you are cooking or baking from an American recipe with a metric measuring jug, mixing concentrated cleaners or garden chemicals sold by the quart, or topping up car fluids like coolant and oil where service specs are quoted in liters. Because a US quart and a liter are so close in size, it is easy to assume they are interchangeable — but the small gap adds up over larger volumes and can throw off a recipe or a fill level.
The two units come from different measuring traditions. The liter is the metric (SI-derived) unit of volume, defined as exactly one cubic decimeter, and is used almost everywhere outside the United States. The US liquid quart belongs to the US customary system: it is one quarter of a US gallon, or 32 US fluid ounces, which works out to exactly 57.75 cubic inches and therefore 0.946352946 liters.
A handy rule of thumb: a US quart is just under a liter — about 95% of one — so to go from quarts to liters, multiply by roughly 0.95, or simply subtract about 5%. Going the other way, a liter is a touch more than a quart (about 1.057 quarts), so four liters is very nearly (but slightly more than) a US gallon of four quarts.
- Watch the quart type: the US liquid quart (0.9464 L) is different from the US dry quart (about 1.101 L) and the UK/imperial quart (about 1.137 L). This converter uses the US liquid quart, so mixing it up with an imperial quart introduces a 20% error.
Frequently asked questions
How do you convert us quart to liter?
Multiply the number of us quarts by 0.9463529 to get liters. For example, 1 qt = 0.9463529 L.
What is 1 us quart in liters?
1 us quart equals 0.9463529 liters (1 qt = 0.9463529 L).
How many us quarts are in 1 liter?
There are 1.056688 us quarts in 1 liter.
Is this converter free and private?
Yes. It runs entirely in your browser, so your inputs never leave your device, there is no sign-up, and it works offline once loaded.
Are the conversions exact?
Conversions use internationally defined factors and are exact where the definitions are exact (for example, 1 inch = 2.54 cm). Displayed results are rounded for readability.
People also ask
How many liters is 2 quarts?
2 US liquid quarts equal about 1.8927 liters (2 × 0.9463529). For everyday cooking you can round this to roughly 1.9 liters.
Is a quart bigger or smaller than a liter?
A US liquid quart is slightly smaller than a liter — about 0.9464 L, or roughly 94.6% of a liter. So a liter holds a little more than a quart, about 1.057 quarts.
How many quarts are in 4 liters?
4 liters equal about 4.227 US quarts (4 × 1.056688). That is just over the 4 quarts that make up a US gallon, since 4 liters is slightly more than 1 US gallon.
What is 1.5 quarts in liters?
1.5 US liquid quarts equal about 1.4195 liters (1.5 × 0.9463529), which rounds to roughly 1.42 liters.
Is a US quart the same as an imperial quart?
No. A US liquid quart is about 0.9464 liters, while a UK imperial quart is about 1.1365 liters — roughly 20% larger. This converter uses the US liquid quart.
How many liters is a quart of oil for my car?
A US quart of motor oil is about 0.946 liters, so it is just shy of a full liter. If a service spec calls for 5 liters, you would need about 5.28 US quarts rather than exactly 5.
How do you convert quarts to liters in your head?
Multiply quarts by about 0.95, or take the quart figure and subtract roughly 5%. For example, 10 quarts is about 9.5 liters (the exact value is 9.4635 liters).
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