Volume Converter
Convert volume between milliliters, liters, US gallons, quarts, pints, cups, fluid ounces, tablespoons, and teaspoons.
Converted Volume
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Milliliters
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Tablespoons —
Teaspoons —
Fluid Ounces —
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Microliters (μL)
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Milliliters (mL) —
Centiliters (cL) —
Deciliters (dL) —
Liters (L) —
US Gallons —
UK Gallons —
Quarts (US) —
Pints (US) —
Cups (US) —
Fluid Ounces —
Cubic Meters (m³) —
How to Use This Calculator
- Enter the volume value to convert.
- Choose the source unit from the dropdown.
- Choose the target unit you want.
- The converted volume is shown immediately.
Formula
All conversions use milliliters (ml) as the base unit:
1 L = 1000 ml | 1 US gal = 3785.41 ml | 1 US cup = 236.59 ml | 1 fl oz = 29.57 ml
Example
Example: Convert 3 cups to milliliters:
3 × 236.588 = 709.76 ml
Frequently Asked Questions
- One US legal cup equals 240 ml (used in US nutrition labeling), while one US customary cup equals 236.588 ml (used in most recipes). In practice, these differ by less than 1.5% and are treated as equivalent. Important regional differences: the metric cup used in Australia, Canada, and New Zealand equals 250 ml exactly. The UK does not have an official "cup" measurement — British recipes use ml or liters directly. When following an American recipe outside the US, use 240 ml per cup for simplicity. A US cup contains 16 tablespoons (14.79 ml each), 48 teaspoons (4.93 ml each), or 8 fluid ounces. Volume cup measurements can vary significantly for dry ingredients depending on how loosely or tightly packed the ingredient is, which is why weight measurements in grams are preferred for baking accuracy.
- One US gallon equals exactly 3.785411784 liters (approximately 3.785 L). One UK imperial gallon equals exactly 4.54609 liters — about 20% more than a US gallon. This difference trips people up when comparing fuel economy: a car rated at 30 US MPG gets about 36 UK MPG for the same actual efficiency. The US gallon was defined as 231 cubic inches in 1707. The imperial gallon was defined in 1824 as the volume occupied by 10 pounds of water at 62°F. One US gallon = 4 US quarts = 8 US pints = 16 US cups = 128 US fluid ounces. One UK gallon = 4 UK quarts = 8 UK pints = 160 UK fluid ounces. Always check which gallon a recipe or fuel specification refers to.
- There are exactly 16 US tablespoons in 1 US cup (236.588 ml). Breaking this down further: 1 cup = 16 tablespoons = 48 teaspoons = 8 fluid ounces = 12 dessertspoons. Each tablespoon equals 3 teaspoons = 14.787 ml. UK and Australian tablespoons are slightly larger — the UK tablespoon = 15 ml and the Australian tablespoon = 20 ml — so a US recipe calling for "4 tablespoons" gives 59 ml, while using Australian tablespoons would give 80 ml, a 35% difference that matters significantly in baking. A common measuring mistake: a "heaped" tablespoon can hold 50–100% more than a level tablespoon. Always use level measurements when accuracy is important. A quarter cup = 4 tablespoons; a third cup ≈ 5 tablespoons + 1 teaspoon.
- One US pint equals 16 US fluid ounces = 473.176 ml. One UK (imperial) pint equals 20 UK fluid ounces = 568.261 ml. The UK pint is about 20% larger than the US pint — a common source of confusion for Americans ordering a "pint" of beer in a British pub. In the US, beer is often served in 16 oz pints; in the UK, a pint is legally 568 ml. Beyond pints: 1 US gallon = 8 US pints = 128 US fl oz; 1 UK gallon = 8 UK pints = 160 UK fl oz. A US fluid ounce = 29.5735 ml; a UK fluid ounce = 28.4131 ml (slightly different sizes). Dry pints (used for berries and produce) are a separate US measurement equal to 33.6 cubic inches ≈ 550 ml.
- US customary and UK imperial volume units share the same names but differ in size. A US gallon = 3.785 L while a UK imperial gallon = 4.546 L (about 20% larger). Consequently: US fluid ounce = 29.57 ml vs UK fluid ounce = 28.41 ml; US pint = 473 ml vs UK pint = 568 ml; US quart = 946 ml vs UK quart = 1,137 ml. These differences exist because the US froze its customary units at an earlier historical definition while the UK later redefined the imperial gallon based on the weight of water. For cooking, always check whether a recipe uses US or UK measurements — the differences are significant enough to affect results, especially for baked goods. Australian, Canadian, and New Zealand recipes generally use metric (ml and liters), avoiding this confusion entirely.