Volume converter
Convert volume units between liters, gallons, cups, milliliters, cubic inches, and more.
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Volume conversion table
| From | To | Result |
|---|---|---|
| 1 Liter (L) | US gallons (gal) | 0.2642 gal |
| 1 US gallon (gal) | Liters (L) | 3.7854 L |
| 1 Liter (L) | Milliliters (mL) | 1000 mL |
| 1 Liter (L) | US fluid ounces (fl oz) | 33.814 fl oz |
| 1 US fluid ounce (fl oz) | Milliliters (mL) | 29.5735 mL |
| 1 US cup (cup) | Milliliters (mL) | 236.588 mL |
| 1 Imperial gallon (gal) | Liters (L) | 4.5461 L |
| 1 US pint (pt) | Milliliters (mL) | 473.176 mL |
| 1 Cubic meter (m³) | Liters (L) | 1000 L |
| 1 Cubic foot (ft³) | Liters (L) | 28.3168 L |
How to convert volume units
Volume conversions multiply the value by a fixed factor. Note that US and imperial units share the same names (gallon, pint, fluid ounce) but have different sizes, so always verify which system you are using.
Liters to US gallons
gallons = liters × 0.2641720524
Example: 20 L = 20 × 0.2641720524 = 5.283 gal
US gallons to liters
liters = gallons × 3.785411784
Example: 5 gal = 5 × 3.785411784 = 18.927 L
Milliliters to US fluid ounces
fl oz = mL × 0.0338140227
Example: 500 mL = 500 × 0.0338140227 = 16.907 fl oz
Frequently asked questions
How many liters are in a gallon?
It depends on which gallon. A US liquid gallon equals 3.785 liters. A UK imperial gallon equals 4.546 liters — about 20% larger. Always confirm which gallon is being used, especially for fuel economy comparisons: a car rated at 40 MPG in the UK gets the equivalent of about 33 MPG by US gallon standards.
How many ml are in a fluid ounce?
A US fluid ounce equals 29.574 mL. A UK imperial fluid ounce equals 28.413 mL — slightly smaller. For most practical purposes the difference is negligible, but it matters in precise formulation work. A standard US can of soda is 12 fl oz = 355 mL; a UK pint of beer is 20 imperial fl oz = 568 mL.
How many cups are in a liter?
Using the US cup (240 mL), 1 liter equals approximately 4.167 cups. Using the metric cup (250 mL, common in Australia and Canada), 1 liter equals exactly 4 cups. For US recipes, 4 cups is close enough for most liquid measurements; for precision, use 4.167 cups or measure in mL.
How do I convert milliliters to liters?
Divide the milliliter value by 1,000. For example, 500 mL = 0.5 L, 250 mL = 0.25 L, 1,500 mL = 1.5 L. To convert liters to milliliters, multiply by 1,000. This is a simple metric prefix conversion — 'milli' means one thousandth.
What is the difference between a US pint and a UK pint?
A US pint equals 473 mL (16 US fluid ounces). A UK imperial pint equals 568 mL (20 imperial fluid ounces) — about 20% larger. This is why a pint of beer in a British pub is noticeably larger than a pint in the US. When a recipe calls for a pint, check whether it originates in the US or UK.
How many milliliters are in a cup, tablespoon, and teaspoon?
1 US cup = 240 mL (or 236.6 mL precisely). 1 tablespoon = 14.79 mL (commonly rounded to 15 mL). 1 teaspoon = 4.93 mL (commonly rounded to 5 mL). These rounded values — 240 / 15 / 5 — are the standard working figures used in most metric recipe conversions.
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