Volume Conversion Formulas

Master volume conversions with precise formulas and conversion factors for metric, imperial, and US customary volume units.

1Basic Volume Conversion Formula

⚠️ Important: Cube the Linear Conversion Factor

Since volume is three-dimensional, you must cube the linear conversion factor when converting between different measurement systems.

Example: Convert 5 m³ to ft³

Linear factor: 1 m = 3.28084 ft
Volume factor:

Example: Convert 10 liters to gallons (US)

Direct conversion: 1 liter = 0.264172 US gallons

2Metric Volume Units

Base Unit: Liter (L)

Kiloliter (kL)
Hectoliter (hL)
Dekaliter (daL)

Smaller Units

Deciliter (dL)
Centiliter (cL)
Milliliter (mL)

Cubic Meter Relationship

3Imperial and US Volume Units

US Liquid Measures

US Gallon
US Quart
US Pint
US Fluid Ounce

Imperial Measures (UK)

Imperial Gallon
Imperial Quart
Imperial Pint
Imperial Fluid Ounce

4Quick Reference Conversion Table

FromToMultiply byExample
LitersUS Gallons0.26417210 L = 2.64 gal
US GallonsLiters3.785415 gal = 18.93 L
Cubic metersCubic feet35.3142 m³ = 70.63 ft³
Cubic feetCubic meters0.0283168100 ft³ = 2.83 m³
Imperial gallonsUS gallons1.200951 imp gal = 1.2 US gal
MillilitersUS fluid ounces0.033814500 mL = 16.91 fl oz

5Cooking and Kitchen Measurements

US Kitchen Measures

Cup
Tablespoon (tbsp)
Teaspoon (tsp)

Metric Kitchen Measures

Metric Cup
Metric Tablespoon
Metric Teaspoon