Volume converters
Volume is where the metric and US customary systems diverge the most: a US gallon and a UK (imperial) gallon are not the same, and US fluid ounces, cups, and tablespoons are slightly different from their imperial counterparts. All factors here are exact: 1 US gal = 3.785411784 L, 1 imp gal = 4.54609 L. Recipe converters should pay attention to which gallon a source uses.
Popular volume conversions
All volume units
The 9 units below can be selected as source or target inside any volume converter.
- MillilitersmL · Metric
- LitersL · Metric
- US gallonsgal · US customary
- Imperial gallonsgal (UK) · Imperial
- US fluid ouncesfl oz · US customary
- US cupscup · US customary
- US pintspt · US customary
- Tablespoonstbsp · US customary
- Teaspoonstsp · US customary
Volume units in terms of the liter
Every volume unit on Convertitive is defined as an exact ratio of the liter (L), the reference unit for this category. The table below shows what one of each unit equals in liters — the constant every converter on this page is built from.
| Unit | Symbol | 1 unit in liters |
|---|---|---|
| Milliliters | mL | 0.001 L |
| Liters | L | base unit |
| US gallons | gal | 3.78541 L |
| Imperial gallons | gal (UK) | 4.54609 L |
| US fluid ounces | fl oz | 0.0295735 L |
| US cups | cup | 0.236588 L |
| US pints | pt | 0.473176 L |
| Tablespoons | tbsp | 0.0147868 L |
| Teaspoons | tsp | 0.00492892 L |
To convert between any two units, Convertitive scales the input to liters using these factors and then back out to the target unit — so every result on this page traces to a single, exact definition rather than a chained approximation. Pick any pair above to see the formula, a 50-row reference table, and worked examples.