Volume Converter
Free online volume converter
Popular volume conversions
About volume units
Volume measures space. Liter (L) and milliliter (mL) are common; gallons vary between US and Imperial systems.
- US gallon: exactly 3.785411784 L.
- Imperial gallon: exactly 4.54609 L.
Units in Volume Converter
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Barrel (oil, bbl)
(bbl)
Common volume unit used in science, engineering, and daily life.
-
Cubic foot (ft³)
(ft3)
A cubic foot (ft³) measures volume in US/UK construction and HVAC systems.
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Cubic inch (in³)
(in3)
Common volume unit used in science, engineering, and daily life.
-
Cubic meter (m³)
(m3)
A cubic meter equals 1,000 L, used for bulk materials and HVAC airflow.
-
Cup (US)
(cup)
US cup ≈ 236.6 mL; varies internationally.
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Imperial gallon (gal UK)
(gal_uk)
Imperial gallon is 4.54609 L, used in UK for beer, milk, and fuel.
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Liter (L)
(l)
A liter equals 1 dm³, widely used for beverages, fuel, and container labeling.
-
Milliliter (mL)
(ml)
A milliliter (mL) is 1/1000 L = 1 cm³; common for medicine and small liquid measures.
-
Pint (US pt)
(pt)
US pint = 0.473176473 L (½ quart).
-
Quart (US qt)
(qt)
US quart = 0.946352946 L (¼ gallon).
-
Tablespoon (US)
(tbsp)
US tablespoon ≈ 14.79 mL; check recipe conversions carefully.
-
Teaspoon (US)
(tsp)
US teaspoon ≈ 4.93 mL.
-
US gallon (gal)
(gal)
US gallon is exactly 3.785411784 L, used for fuel economy ratings.
Formulas and notes
Be careful with US vs Imperial gallons (3.785 L vs 4.546 L).
Quick examples
FAQ
Is volume conversion exact?
Many conversions are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Can I share a specific result?
Yes. Every converter has a clean, shareable URL like
/convert/meter-to-foot/2.5
.