BrowserTools

Volume Converter

Liters, gallons, cups, milliliters

By Guga — BrowserTools maintainer, Tbilisi, Georgia Updated 2026-08-15
Free Private No uploads
What is Volume Converter?

Volume is where national measurement habits collide hardest, and this table keeps the two gallon systems apart rather than blending them. The US gallon is exactly 3.785411784 litres, defined from the cubic inch; the imperial gallon is 4.54609 litres, derived from the imperial pound of water, and it is about 20% larger. Alongside those sit the US customary units — fluid ounce, cup, pint, quart — plus millilitres, litres, cubic metres, cubic inches and cubic feet, all stored as exact factors. Enter a quantity and it appears in all eleven at once, which makes cross-checking trivial: one US gallon is eight pints, or 3.785411784 litres, and one cubic foot is 28.316846592 litres. The units are volume of liquid and space, not weight, so a cup of flour will not weigh the same as a cup of water.

Convert volume and capacity between liters, milliliters, US and imperial gallons, quarts, pints, cups and cubic units. Live updates across all measures.

Private Volume Converter In Your Browser

Volume Converter is processed locally with client-side JavaScript. Your files never touch a server, and there is no queue to wait in.

Step-by-Step

How to use Volume Converter

1

Put the quantity into the Value box.

2

Select From unit for the measure you are converting from — check carefully whether it is the US or imperial gallon.

3

Select To unit for the measure you need, or press the swap control to reverse them.

4

Read the Result and compare it against the eleven tiles in the All volume units grid.

Key Capabilities
  • Eleven units from millilitres to US and imperial gallons
  • US and imperial gallons held as separate, independently exact entries
  • Cubic inch, foot and metre included alongside the customary measures
  • All eleven conversions displayed live beneath the main fields
Common Use Cases
  • A home brewer comparing a 5 US gallon batch recipe against an 18.9 litre kit specification.
  • A UK driver filling a jerrycan, checking whether a stated 5 imperial gallons fits a 40 litre container.
  • A student converting a cubic foot of timber volume into litres for a shipping quote.
Clear Answers

Frequently Asked Questions

How much bigger is an imperial gallon?
4.54609 litres against the US 3.785411784, so the imperial measure is about 20% larger. Ordering five imperial gallons when the recipe means five US ones costs you an extra 3.8 litres, which is roughly a fifth of a bottle.
Is there an imperial pint on this tool?
No, and the gap is worth knowing. This table carries the imperial gallon alone from the British system; its pints, cups and fluid ounces are all US customary. An imperial pint is 568.26 ml against 473.18 ml for the US one, so mixing them drifts by about 17% over a recipe.
Can I convert a dry measure such as a bushel or peck?
Not here. Everything listed is liquid volume or plain cubic space, and dry measures were standardised separately — a dry pint and a liquid pint are different volumes. For grain and produce you would need a dry-specific table.
Why does a cup of flour not weigh the same as a cup of water?
Because this measures volume, and flour packs with air between the grains. A US cup of water is 236.59 ml by definition, but a cup of plain flour comes out around 120 grams. If a recipe gives weight in grams, switch to the weight converter rather than converting the volume.