Volume Converter
MeasurementFree online volume converter. Convert between millilitres, litres, cubic metres, US fluid ounces, cups, pints, quarts, gallons, and UK imperial volumes.
| Millilitres (mL) | 1000 |
| Centilitres (cL) | 100 |
| Litres (L) | 1 |
| Cubic Metres (m³) | 0.001 |
| Cubic Centimetres (cm³) | 1000 |
| US Teaspoons | 202.8842 |
| US Tablespoons | 67.627884 |
| US Fluid Ounces | 33.814057 |
| US Cups | 4.2267571 |
| US Pints | 2.1133785 |
| US Quarts | 1.0566881 |
| US Gallons | 0.26417218 |
| UK Fluid Ounces | 35.195033 |
| UK Pints | 1.7597548 |
| UK Gallons | 0.21996925 |
What is a Volume?
A volume converter translates liquid and solid volume measurements between different unit systems — metric, US customary, and UK imperial. Volume is one of the most practically important measurements in daily life, yet also one of the most inconsistently standardised across countries and contexts.
In India, volume is measured in millilitres and litres for liquids, and cubic metres for large quantities such as water tanks and fuel storage. In the United States, recipes use teaspoons, tablespoons, cups, pints, quarts, and gallons — units that do not correspond neatly to any metric measure. The UK adds further complexity with its own fluid ounce, pint, and gallon, all of which differ from US measurements despite sharing identical names.
The volume converter covers all three systems: metric (mL, cL, L, m³, cm³), US customary (tsp, tbsp, fl oz, cup, pint, quart, gallon), and UK imperial (fl oz, pint, gallon). For physical dimension conversions alongside volume work, the Length Converter handles distances and sizes. For weight-to-volume contexts in cooking or commodity trading, see the Weight & Mass Converter.
Volume measurement accuracy matters most in cooking and chemistry. In baking, a 1-cup deviation can cause a recipe to fail. In medicine and chemistry, precise volumetric measurement is essential for dosing and reactions. The volume converter eliminates the arithmetic that introduces errors in both contexts.
How to use this Volume calculator
- Enter the volume in the FROM field. Decimals work: 2.5 cups, 0.75 litres.
- Select the FROM unit from the dropdown. Units are grouped as Metric, US Customary, and UK Imperial.
- Select the TO unit for your target measurement.
- Read the result instantly in the TO field. The reference table updates simultaneously.
- Type in the TO field to reverse-convert — enter the target amount and the FROM field back-calculates.
- Swap — the ⇅ button reverses FROM and TO without clearing the entered value.
Formula & Methodology
All volume conversions use litres (L) as the base unit. Each unit is defined by its litre equivalent: Conversion formula: Result = Input × (F_from ÷ F_to) Where F_from is the litre equivalent of the source unit and F_to is the litre equivalent of the target unit. Key conversion factors: - 1 mL = 0.001 L (identical to 1 cm³) - 1 m³ = 1,000 L - 1 US tsp = 0.004929 L - 1 US tbsp = 3 tsp = 0.014787 L - 1 US fl oz = 0.029574 L - 1 US cup = 8 fl oz = 0.236588 L - 1 US pint = 2 cups = 0.473176 L - 1 US quart = 2 pints = 0.946353 L - 1 US gallon = 4 quarts = 3.78541 L - 1 UK fl oz = 0.028413 L - 1 UK pint = 20 UK fl oz = 0.568261 L - 1 UK gallon = 8 UK pints = 4.54609 L Worked example — adapting an American recipe: A recipe calls for 2 cups of whole milk. To find the equivalent in millilitres: 2 × (0.236588 L ÷ 0.001 L) = 2 × 236.588 = 473.2 mL A standard 500 mL packet of milk will exceed the recipe requirement by approximately 27 mL (about 5.6%). For most baked goods this is acceptable; for delicate pastry or custard recipes where liquid ratio is critical, it is worth measuring exactly 473 mL using a measuring jug.