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The calculator needs JavaScript. The tables below give the same numbers for common cases.

How it is worked out

  1. Convert to the base unit (litre): 1 × 3.785411784 = 3.785411784.
  2. Divide by the size of the target unit: 3.785411784 ÷ 1 = 3.785411784 L.
Size of each unit in litres
UnitEquals
litre (L)1 L = 1 litres
millilitre (mL)1 mL = 0.001 litres
cubic metre (m³)1 m³ = 1,000 litres
cubic centimetre (cm³)1 cm³ = 0.001 litres
US gallon (gal)1 gal = 3.785411784 litres
US quart (qt)1 qt = 0.946352946 litres
US pint (pt)1 pt = 0.473176473 litres
US cup (cup)1 cup = 0.2365882365 litres
US fluid ounce (fl oz)1 fl oz = 0.02957352956 litres
US tablespoon (tbsp)1 tbsp = 0.01478676478 litres
US teaspoon (tsp)1 tsp = 0.004928921594 litres
imperial gallon (imp gal)1 imp gal = 4.54609 litres
imperial pint (imp pt)1 imp pt = 0.56826125 litres
imperial fluid ounce (imp fl oz)1 imp fl oz = 0.0284130625 litres
cubic inch (in³)1 in³ = 0.016387064 litres
cubic foot (ft³)1 ft³ = 28.31684659 litres

How to use it

Volume units here include metric (litre, millilitre, cubic metre) and US customary units used in cooking and fuel: the US gallon is exactly 3.785411784 litres, the quart a quarter of it, the pint an eighth, the cup a sixteenth (236.5882365 mL), the fluid ounce 29.5735295625 mL, the tablespoon half a fluid ounce and the teaspoon a third of a tablespoon.

Imperial (UK) units are different: the imperial gallon is exactly 4.54609 litres. Always check which system a recipe or a tank uses.

Frequently asked questions

How many cups are in a gallon?

16 US cups.

How many tablespoons are in a cup?

16 US tablespoons.

How many millilitres are in a US cup?

236.5882365 mL.

Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.

Written by Calculators Free Editorial Team · Data checked 2026-11-12
About · How we verify this · Editorial policy · Corrections

General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.