US cups to Litres
US cups to Litres (cup (US) to L) Converter
Convert from
- US cupscup (US)
- MillilitresmL
- Metric cupscup (metric)
- Imperial cups (UK)cup (UK)
- US tablespoonstbsp (US)
- Metric tablespoonstbsp (metric)
- US teaspoonstsp (US)
- Metric teaspoonstsp (metric)
- US fluid ouncesfl oz (US)
- Imperial fluid ounces (UK)fl oz (UK)
- LitresL
- US liquid pintspt (US)
- Imperial pints (UK)pt (UK)
- US liquid quartsqt (US)
- DecilitresdL
- Cubic metresm³
- US gallonsgal (US)
- Imperial gallons (UK)gal (UK)
- Imperial quarts (UK)qt (UK)
- Cubic inchesin³
- Cubic feetft³
- Cubic yardsyd³
- Oil barrels (US)bbl
1 US cup = 0.23659 litres
Default is 5 significant figures. “Units typed as” decides what words like gallon, pint or cup mean when you type them. Scientific input such as 1e15 or 2.5e-3 works in the value box; type unit names or a whole conversion in the unit picker’s search.
- 1 cup (US) = 0.23659 L
- 5 cup (US) = 1.1829 L
- 10 cup (US) = 2.3659 L
- 25 cup (US) = 5.9147 L
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How it’s calculated
A US customary cup is exactly 236.5882365 mL, so 4.2268 US cups make a litre. A metric cup is 250 mL (4 per litre). US nutrition labels use a 240 mL cup.
1 cup (US) = 0.2365882365 L (exact) · 1 L ≈ 4.2267528 cup (US)
L = cup (US) × 0.2365882365
- Multiply the value in US cups by 0.2365882365.
- To go back, divide by 0.2365882365 (or multiply by 4.226752838).
- 1 cup (US) = 0.2365882365 L · 1 L = 4.226752838 cup (US)
Step by step
Find the conversion factor
By definition 1 cup (US) = 0.0002365882365 m³ and 1 L = 0.001 m³, so 1 cup (US) = 0.2365882365 L. Source: NIST SP 811 / Handbook 44; BIPM SI Brochure (9th ed.).
Multiply by the factor written as a fraction
Put cup (US) in the denominator so it cancels, leaving L.
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 0.23659 L
Formula: L = cup (US) × 0.2365882365. Factors last reviewed 2026-10-27.
US cups to litres conversion table
1 US cup = 0.23659 litres · 1 L = 4.2268 cup (US)
- 1 US cup = 0.23659 litres
- 5 US cups = 1.1829 litres
- 10 US cups = 2.3659 litres
- 25 US cups = 5.9147 litres
- 100 US cups = 23.659 litres
| US cups (cup (US)) | Litres (L) |
|---|---|
| 0.125 cup (US) | 0.029574 L |
| 0.25 cup (US) | 0.059147 L |
| 0.3333333333 cup (US) | 0.078863 L |
| 0.5 cup (US) | 0.11829 L |
| 0.6666666667 cup (US) | 0.15773 L |
| 0.75 cup (US) | 0.17744 L |
| 1 cup (US) | 0.23659 L |
| 1.5 cup (US) | 0.35488 L |
| 2 cup (US) | 0.47318 L |
| 3 cup (US) | 0.70976 L |
| 4 cup (US) | 0.94635 L |
| 5 cup (US) | 1.1829 L |
| 6 cup (US) | 1.4195 L |
| 8 cup (US) | 1.8927 L |
FAQ
How do I convert US cups to litres?
Use L = cup (US) × 0.2365882365. Multiply the value in US cups by 0.2365882365.
How many litres are in 1 US cup?
1 US cup (cup (US)) equals 0.23659 litres (L); more precisely 0.2365882365.
How many US cups are in 1 litre?
1 litre (L) equals 4.2268 US cups (cup (US)); more precisely 4.226752838.
What is 10 cup (US) in L?
10 US cups = 2.3659 litres.
Is the US cup a US or a UK unit?
Unitglide uses the US customary US cup. The US cup used in recipes: one sixteenth of a US gallon, about 236.59 mL. US nutrition labels round it to 240 mL. US and UK units with the same name can differ, so check which one your source uses.
What is a US cup?
The US cup used in recipes: one sixteenth of a US gallon, about 236.59 mL. US nutrition labels round it to 240 mL.
What is a litre?
Defined as exactly 1 dm³ = 0.001 m³.
About these units
US cup (cup (US))
US customary
1 cup (US) = 0.0002365882365 m³ (exact)
The US cup used in recipes: one sixteenth of a US gallon, about 236.59 mL. US nutrition labels round it to 240 mL.
Source: NIST SP 811 / Handbook 44
Litre (L)
metric (non-SI)
1 L = 0.001 m³ (exact)
Defined as exactly 1 dm³ = 0.001 m³.
Source: BIPM SI Brochure (9th ed.)