Volume Converter

Free online volume converter. Choose a category below to convert between any volume units — metric, imperial, US customary, cooking, lumber, biblical, and more.

Metric & US Common

• Liters to Gallons / Gallons to Liters
• mL to Cups / L to mL
• Liter to Cubic Meter / mL to Cubic Meter
• CC to mL / CC to Cubic Meter

Cooking & Kitchen

• Tablespoons to Cups / back
• Teaspoons to mL / back
• Cups to Gallons / Pints / Quarts
• Pints to mL / Pints to Liters

Cubic Units

• Cubic Yard / Foot / Inch to Cubic Meter
• Cubic Feet to Cubic Yards / to Gallons
• Cubic Inches to Liters / to Gallons
• Gallon (US) / UK to Cubic Meter

Specialty & Historical

• Biblical Volume Units Converter
• Lumber Volume Converter (Board Feet, Cord, MBF)
• Earth's Volume to Cubic Meter
• Barrel (Oil) / UK to Cubic Meter
• Stere / Cord / Tun to Cubic Meter
• Board Foot / Ton Register to Cubic Meter

Volume Units in Science, Cooking, and Trade

Volume is measured differently across contexts. Scientists use litres (L) and millilitres (mL) or cubic metres (m³). US cooking uses cups, fluid ounces, tablespoons, and teaspoons. UK recipes use both metric and imperial (pints, fluid ounces). Trade shipping uses cubic feet or cubic metres. A US fluid ounce (29.57 mL) differs from a UK fluid ounce (28.41 mL). A US pint is 16 fl oz (473 mL); a UK pint is 20 fl oz (568 mL). Always specify the system when following recipes or shipping goods internationally.

Common Volume Conversions

Understanding Volume Units

Volume measures the three-dimensional space enclosed by a container. The SI unit is the cubic metre (m³), but everyday measurements use litres (L) for liquids and smaller solids. One litre = 1 cubic decimetre = 1000 cubic centimetres. US customary liquid volumes include fluid ounces (fl oz), cups, pints, quarts, and gallons. Dry volumes use different measure sizes in the US. Imperial (UK) volumes differ from US volumes — a UK pint = 568 mL vs US pint = 473 mL.

Conversions between systems: 1 US gallon = 3.785 L; 1 UK gallon = 4.546 L; 1 US fl oz = 29.57 mL; 1 UK fl oz = 28.41 mL. Scientific measurements use millilitres and cubic centimetres (1 mL = 1 cm³). Industrial quantities use cubic metres. Cooking recipes in North America use cups, tablespoons, and teaspoons; European recipes mostly use grams and millilitres.

Volume Unit Conversions

Navigating Volume Unit Systems Worldwide

Volume measurement uses two fundamentally different systems: metric (liters, milliliters, cubic meters) and US customary (gallons, quarts, pints, cups, fluid ounces). Additionally, the US and UK use different gallon, pint, and fluid ounce sizes, creating a third layer of variation. One US gallon = 3.785 L; one imperial gallon = 4.546 L. One US fluid ounce = 29.574 mL; one imperial fluid ounce = 28.413 mL. Cooking, medicine, and retail packaging in the US use US customary units; science, international trade, and most of the world use metric. Fuel in the US is sold in US gallons; in Canada (officially metric) gasoline is sold in liters; in the UK the imperial gallon is largely gone but pints persist for beer and milk. For large industrial volumes, cubic meters and cubic feet are common. Selecting the right conversion requires knowing both the source and destination unit systems and confirming which gallon or pint definition applies.

Volume Unit Quick Reference