Volume Converter

Convert between volume units instantly.

Kitchen cups, fuel pumps, lab glassware, and shipping cubes use different “liter” habits—check which standard you mean.

From:

To:

0.000000
Conversion Result
1 Liter = 0.000000 Milliliter
1 Liter = 1000.000000 Milliliter

Volume work you actually do

  • Cooking & baking: scaling US cups and tablespoons against milliliters for imported recipes.
  • Fuel & fluids: liters at the pump vs gallons in older manuals; coolant and oil jugs mixing metric/imperial labels.
  • Construction & shipping: cubic feet and cubic meters for concrete pours, freight, and storage quotes.
  • Labs: milliliters and cubic centimeters lining up with liquid reagent bottles.

All rows reconcile through Liter internally (14 units).

Volume FAQs (the ones people actually argue about)

Which gallon is baked into this tool?

The Gallon row uses the US liquid gallon (≈ 3.785 L). UK/imperial gallons are larger (~4.546 L). If a British recipe says “per gallon,” mentally swap systems before trusting a US-gallon conversion.

Why might my kitchen measuring cup disagree slightly with milliliters here?

Cup, tablespoon, and teaspoon rows follow US customary definitions used in many American recipes. Other countries define different cup sizes (metric cup ≈ 250 mL, Japanese rice cup ≈ 180 mL). For baking precision, weigh ingredients or confirm which cup standard the author used.

What does the “barrel” unit represent?

The barrel value here follows the common petroleum barrel conversion (~159 L) used in energy and commodity contexts—not every industry barrel (beer, wine, shipping) shares the same volume, so always confirm the contract spec.

Two gallons, one word

This tool’s gallon is the US liquid gallon (~3.785 L). A UK/imperial gallon is about 4.546 L—roughly 20% larger. If you are pricing paint in London or reading an old British cookbook, sanity-check which gallon they mean before trusting a straight US conversion.

Recipe & field mistakes

  • Using a metric 250 mL cup when the author assumed a US legal cup (~240 mL)—errors stack when you quadruple batches.
  • Confusing fluid ounces (volume) with weight ounces on a kitchen scale—only the name overlaps.
  • Treating every industry barrel like a crude-oil barrel; beer and wine barrels differ by tradition and regulation.
By Muhammad Abdullah Rauf · Founder, EverydayTools.proUpdated 2026-05-03

How to use Volume Converter

  1. Enter the volume value

    Type the volume to convert. Works for tiny volumes (0.5 mL eye drops) and large volumes (50,000 L storage tanks).

  2. Select the input unit

    Choose your unit: litres, millilitres, cubic metres, cubic centimetres (= mL), US gallons, UK gallons, US fluid ounces, US cups, US pints, US quarts, or cubic feet.

  3. Read the converted volumes

    All equivalents appear at once. For cooking, the cup/tablespoon/teaspoon values are most useful. For industrial use, cubic metres or litres.

Volume Converter examples

Convert recipe volume from cups to millilitres

Input

2 US cups

Output

473 mL · 0.473 L · 16 fl oz

2 cups of liquid = 473 mL. Most international recipes use mL; US recipes use cups. 1 US cup = 236.6 mL.

Convert fuel tank capacity

Input

15 US gallons

Output

56.78 litres · 56,781 mL · 12.49 UK gallons

US car fuel tanks are measured in US gallons; European equivalents use litres. A 15-gallon tank holds 56.8 litres. Note: US and UK gallons are different.

Who uses Volume Converter?

Common real-world scenarios where this tool saves time.

Home cooks and recipe followers

Convert cups and fluid ounces to mL for international recipes

US recipes use cups; international recipes use mL or grams for liquids. Accurate volume conversion prevents measurement errors that affect recipe outcomes, especially in baking.

Chemists and lab scientists

Convert between mL, L, and cubic centimetres

Lab protocols specify volumes in mL or µL; storage tanks are measured in litres or m³. Accurate conversion between scales prevents dosing and dilution errors.

Travellers and drivers

Understand fuel prices per litre vs. per gallon

Fuel prices in the US are per US gallon; in Europe per litre. Converting fuel prices to a common unit allows direct price comparison: $4/gallon = $1.06/litre.

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Frequently Asked Questions

How many mL in a cup?

1 US cup = 236.588 mL. Common cup fractions: ½ cup = 118.3 mL, ⅓ cup = 78.9 mL, ¼ cup = 59.1 mL. Note: metric cups (used in Australia, Canada) = 250 mL — slightly larger than the US cup.

How many litres in a US gallon?

1 US gallon = 3.78541 litres. 1 UK (imperial) gallon = 4.54609 litres. The US and UK gallons are different — the UK gallon is about 20% larger. A 10 US gallon gas can holds 37.85 litres.

What is the difference between a US fluid ounce and a UK fluid ounce?

1 US fluid ounce = 29.5735 mL. 1 UK (imperial) fluid ounce = 28.4131 mL. They are close but not identical. Most international recipes and nutritional labels use mL to avoid this ambiguity.

How many cups in a litre?

1 litre = 4.2268 US cups. Approximate: 1 litre ≈ 4 cups + 3 tablespoons. For cooking, 1 litre = 4 cups is a common enough approximation. 2 litres ≈ 8.5 cups.

How many cubic centimetres in a litre?

1 litre = 1,000 cubic centimetres (cm³). This is exact by definition. 1 cm³ = 1 mL. So 250 mL = 250 cm³. The cubic centimetre and millilitre are numerically identical for liquid volume.

Part of Unit Converters

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Reviewed by EverydayTools Editorial Team.