Litres to both kinds of gallon
- Input
- 5 litres to gallons.
- Working
- US: 5 ÷ 3.785411784 = 1.3209 US gallons. Imperial: 5 ÷ 4.54609 = 1.0998 imperial gallons.
- Result
- 5 L = 1.32 US gal, or 1.10 imperial gal
Volume Converter
Convert litres, gallons, cups and fluid ounces with US and imperial gallons kept separate — exact factors and tables, in your browser. Runs entirely in your browser — your numbers never leave this device.
Litres → US gallons
0.264172 gal (US)
1 L = 0.264172 gal (US)
| Unit | Value |
|---|---|
| Millilitres (mL) | 1,000 mL |
| Litres (L) | 1 L |
| Cubic metres (m³) | 0.001 m³ |
| US fluid ounces (fl oz (US)) | 33.814023 fl oz (US) |
| Imperial fluid ounces (fl oz (imp)) | 35.19508 fl oz (imp) |
| US cups (cup (US)) | 4.226753 cup (US) |
| Tablespoons (US) (tbsp) | 67.628045 tbsp |
| Teaspoons (US) (tsp) | 202.884136 tsp |
| US pints (pt (US)) | 2.113376 pt (US) |
| Imperial pints (pt (imp)) | 1.759754 pt (imp) |
| US quarts (qt (US)) | 1.056688 qt (US) |
| US gallons (gal (US)) | 0.264172 gal (US) |
| Imperial gallons (gal (imp)) | 0.219969 gal (imp) |
How it works
Millilitres = value × factor of the source unit (US gallon = 3,785.411784 mL, imperial gallon = 4,546.09 mL, US cup = 236.5882365 mL); then divide by the target unit's factor
| Unit | Millilitres |
|---|---|
| Millilitre (mL) | 1 |
| Teaspoon (US) | 4.92892159375 |
| Tablespoon (US) | 14.78676478125 |
| Fluid ounce (imperial) | 28.4130625 |
| Fluid ounce (US) | 29.5735295625 |
| Cup (US) | 236.5882365 |
| Pint (US) | 473.176473 |
| Pint (imperial) | 568.26125 |
| Litre (L) | 1,000 |
| Gallon (US) | 3,785.411784 |
| Gallon (imperial) | 4,546.09 |
Volume is where the same word means two different amounts. A US gallon is exactly 3.785411784 litres; an imperial gallon is exactly 4.54609 litres, about 20% larger, and every smaller unit built on them differs too — a US fluid ounce is 29.5735295625 mL while an imperial fluid ounce is 28.4130625 mL. This converter always labels which gallon family a unit belongs to, because an unlabelled gallon conversion is wrong one time in two.
The metric side is simpler: a litre is 1,000 mL by definition, and a metric cup, where recipes use one, is 250 mL — not the US cup of 236.5882365 mL. Kitchen measures chain down from the US cup: 1 US cup = 16 tablespoons, 1 tablespoon = 14.78676478125 mL, and 1 teaspoon = 4.92892159375 mL, so a teaspoon is exactly a third of a tablespoon.
For cooking weights rather than liquid volumes, use the Cooking Converter: a cup of flour and a cup of honey occupy the same volume but weigh very different amounts, so flour converts at 120 g per cup and honey at 340 g per cup there. This page converts volume to volume only, which is the honest limit of a factor table.
Worked examples
Millilitres to US fluid ounces
- Input
- 750 mL to US fluid ounces.
- Working
- 1 US fl oz = 29.5735295625 mL, so 750 ÷ 29.5735295625 = 25.3605.
- Result
- 750 mL = 25.36 US fl oz
US gallons to litres
- Input
- 2 US gallons to litres.
- Working
- 2 × 3.785411784 = 7.570823568.
- Result
- 2 US gallons = 7.57 L
Frequently asked questions
How many litres are in a gallon?
It depends which gallon. A US gallon is exactly 3.785411784 litres; an imperial gallon is exactly 4.54609 litres. Always check which one a tank size, fuel figure or recipe means — US sources mean the US gallon, and UK fuel is sold by the litre but economy is often still quoted per imperial gallon.
Is a US cup the same as a metric cup?
No. A US cup is 236.5882365 mL, while a metric cup is 250 mL — about 5.7% larger. A recipe calling for 2 cups differs by roughly 27 mL depending on which cup it assumes, which matters for baking ratios even when it hardly matters for soup.
How many millilitres are in a tablespoon and a teaspoon?
A US tablespoon is 14.78676478125 mL and a US teaspoon is 4.92892159375 mL, exactly one third of a tablespoon. There are 16 tablespoons in a US cup. Note that an Australian tablespoon is 20 mL, so check the origin of a recipe that measures by spoons.
Why does 500 mL come out as about 2.11 US cups?
Because 500 ÷ 236.5882365 = 2.1134. Half a litre is a little more than 2 US cups, not exactly 2 — the 2-cup shortcut quietly removes about 27 mL. For drinks that hardly matters; for a custard or a bake, measure the millilitres if the recipe gives them.
Can this converter turn cups into grams?
Not honestly, because grams per cup depend on the ingredient: a US cup of all-purpose flour is about 120 g, while a cup of honey is about 340 g. The Cooking Converter holds that per-ingredient table and is the right page for cups-to-grams questions.
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