Volume Converter
Convert between liters, gallons, milliliters, fluid ounces, cups, pints, quarts, cubic meters, and more. Metric and US/imperial volume units.
Metric
Cubic Meter
m³
Liter
L
Deciliter
dL
Centiliter
cL
Milliliter
mL
Cubic Centimeter
cm³
US Customary
US Gallon
US gal
US Quart
US qt
US Pint
US pt
US Cup
US cup
US Fluid Ounce
US fl oz
US Tablespoon
US tbsp
US Teaspoon
US tsp
UK Imperial
UK Gallon
UK gal
UK Pint
UK pt
UK Fluid Ounce
UK fl oz
How to Use Volume Converter
- 1Enter a volume value in any unit field.
- 2All other volume units update instantly.
- 3Toggle between cooking, metric, and imperial units.
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Frequently Asked Questions
How do I convert liters to gallons?▾
1 liter = 0.264172 US gallons. 1 US gallon = 3.78541 liters. Note: US gallon ≠ UK imperial gallon. 1 US gallon = 3.785 L. 1 UK gallon = 4.546 L. Common conversions: 1 L ≈ 0.26 US gal. 5 L ≈ 1.32 gal. 10 L ≈ 2.64 gal. 20 L ≈ 5.28 gal (standard gas can). 40 L ≈ 10.57 gal (car fuel tank). 1 gallon ≈ 3.8 L. 5 gallons ≈ 19 L. Gas prices: $4/gallon ÷ 3.785 = $1.057/liter. €1.70/liter × 3.785 = €6.43/gallon.
What is the difference between a US gallon and UK gallon?▾
US gallon: 3.78541 liters = 128 US fl oz = 4 US quarts = 8 US pints = 16 US cups. UK imperial gallon: 4.54609 liters = 160 imperial fl oz = 4 imperial quarts = 8 imperial pints. US gallon is about 20% smaller than UK gallon. This matters for: fuel economy (UK mpg ≠ US mpg — a UK car getting 40 UK mpg actually achieves ~33 US mpg). Recipes from UK cookbooks use UK measurements. Car fuel tanks. Military specification documents sometimes use imperial.
How do I convert cups to milliliters for cooking?▾
1 US cup = 236.588 mL (≈ 240 mL is commonly used). 1 metric cup (Australia) = 250 mL. 1 UK cup (older measure) = 284 mL. For cooking: 1/4 cup = 60 mL. 1/3 cup = 80 mL. 1/2 cup = 120 mL. 1 cup = 240 mL. 2 cups = 480 mL. Tablespoon: 1 US tbsp = 14.79 mL ≈ 15 mL. Teaspoon: 1 US tsp = 4.93 mL ≈ 5 mL. Always check if a recipe is US, UK, or metric — the differences are significant enough to matter in baking. US recipes dominate online, but Australian recipes use 250 mL cups.
What is a fluid ounce?▾
A fluid ounce (fl oz) is a volume unit — it is NOT the same as a weight ounce. 1 US fluid ounce = 29.5735 mL. 1 UK fluid ounce = 28.4131 mL. Common US volumes: 8 fl oz = 1 cup = 237 mL. 16 fl oz = 1 pint = 473 mL. 32 fl oz = 1 quart = 946 mL. 128 fl oz = 1 gallon = 3.785 L. For beverages: a standard US soda can is 12 fl oz = 355 mL. A US beer bottle is typically 12 fl oz. A wine bottle is 750 mL ≈ 25.36 fl oz. A US pint of beer is 16 fl oz = 473 mL (UK pint = 568 mL).
How are cubic meters related to liters?▾
1 cubic meter (m³) = 1,000 liters = 1,000,000 mL = 264.172 US gallons. 1 liter = 0.001 m³ = 1 dm³ (cubic decimeter). 1 cm³ = 1 mL (milliliter) — this equivalence is exact. 1 m³ of water weighs exactly 1,000 kg = 1 tonne. Swimming pool: Olympic pool ≈ 2,500 m³ = 2.5 million liters = 660,430 gallons. A standard bathtub holds about 300 L = 0.3 m³ ≈ 79 gallons. Human blood volume: ~5 liters. Hot water heater: typical US tank is 50 gallons ≈ 189 liters.