Volume Converter

Convert between liter, gallon, cubic meter, milliliter, pint, quart, cup, barrel, and many other volume units with scientific precision.

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Volume Units Explained

Cubic Meter (m³)

The SI unit of volume, equal to 1,000 liters. Represents the volume of a cube with sides of one meter.

Common uses: Large volume measurements, water capacity, storage tanks, construction.

Liter (L)

Metric unit of volume. 1 L = 1 dm³ = 0.001 m³. The most common unit for everyday liquid volume.

Common uses: Beverages, milk, fuel, cooking, medical dosages, engine displacement.

Milliliter (mL)

One thousandth of a liter. 1 mL = 1 cm³ = 0.001 L. Standard for medical and cooking measurements.

Common uses: Medicine dosages, cooking measurements, laboratory samples, small quantities.

Gallon (US)

US customary unit. 1 US gal = 3.78541 L. Standard for fuel, milk, and large liquid quantities in USA.

Common uses: Gasoline/petrol, milk jugs, paint, pool volumes, fuel economy (MPG).

Quart (US)

One quarter of a gallon. 1 US qt = 0.946353 L. Used for oil, cream, and other liquids.

Common uses: Motor oil, cream, liquid measurement, cooking recipes.

Pint (US)

One eighth of a gallon. 1 US pt = 0.473176 L. Common in brewing and beverages.

Common uses: Beer, ice cream containers, milk, cooking measurements.

Cup (US)

Standard cooking measurement. 1 cup = 236.588 mL. Essential for recipes.

Common uses: Cooking, baking, recipe measurements, portion sizes.

Tablespoon (US)

Standard cooking unit. 1 tbsp = 14.787 mL. Equal to 3 teaspoons.

Common uses: Cooking, baking, sauce recipes, condiment measurements.

Teaspoon (US)

Smallest common cooking unit. 1 tsp = 4.929 mL. Equal to 1/3 tablespoon.

Common uses: Medicine dosages, spice measurements, salt/sugar amounts.

Fluid Ounce (US)

US customary unit. 1 fl oz = 29.5735 mL. Common in nutrition labels and recipes.

Common uses: Liquid medication, nutrition facts, cooking conversions.

Barrel

Large capacity unit. 1 oil barrel = 158.987 L. Standard for petroleum industry.

Common uses: Crude oil quantities, wine production, brewing industry.

Cubic Foot (ft³)

Imperial volume unit. 1 ft³ = 28.3168 L. Common in construction and HVAC.

Common uses: Room dimensions, HVAC flow rates, storage capacity, lumber measurements.

Cubic Inch (in³)

Small imperial unit. 1 in³ = 16.387 mL. Used in engine displacement.

Common uses: Engine displacement, small component volumes, precision manufacturing.

Gallon (UK/Imperial)

Imperial gallon, larger than US. 1 UK gal = 4.54609 L. Used in UK, Canada, and other Commonwealth countries.

Common uses: UK fuel/milk jugs, Commonwealth measurements, nautical volumes.

Volume Conversions Quick Reference

  • 1 Liter: 1000 mL = 1.0567 US qt = 0.2642 US gal
  • 1 US Gallon: 3.78541 L = 4 quarts = 8 pints = 16 cups
  • 1 Cup (US): 236.588 mL = 16 tablespoons = 48 teaspoons
  • 1 Tablespoon: 14.787 mL = 3 teaspoons
  • 1 Cubic Meter: 1000 L = 35.315 ft³ = 1.308 yd³
  • 1 Cubic Foot: 28.3168 L = 7.4805 US gallons
  • Cooking Conversions: 1 cup ≈ 240 mL, 1 tbsp ≈ 15 mL, 1 tsp ≈ 5 mL
  • Medical Standard: 1 mL = 1 cc (cubic centimeter)
  • Oil Barrel: 42 US gallons = 158.987 liters

Important: US vs UK (Imperial) Units

  • US Gallon: 3.78541 L (standard in USA)
  • UK Gallon: 4.54609 L (larger, used in UK/Commonwealth)
  • US Pint: 0.473176 L
  • UK Pint: 0.568261 L
  • US Cup: 236.588 mL (standard in recipes)
  • Metric Cup: 250 mL (used internationally)
  • Cooking recipes without country specified: Assume US measurements unless otherwise noted