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Volume Converter

Free online volume converter tool. Convert between liters, gallons, cups, fluid ounces, cubic meters, cubic feet, milliliters, and more volume units instantly and accurately.

Result
0.264172
1 Liter (L) = 0.264172 US Gallon (gal)

Quick Reference: 1 Liter (L) in other units

Milliliter (ml)1,000
US Gallon (gal)0.264172
Imperial Gallon (imp gal)0.219969
US Quart (qt)1.056688
US Pint (pt)2.113379
US Cup4.226757
US Fluid Ounce (fl oz)33.814057
Tablespoon (tbsp)67.627884
Teaspoon (tsp)202.884202
Cubic Centimeter (cm³)1,000
Cubic Meter (m³)1.000000e-3
Cubic Inch (in³)61.02361
Cubic Foot (ft³)0.035315

How to Use This Tool

  1. Enter the volume value you want to convert.
  2. Select the unit you are converting from in the "From" dropdown.
  3. Select the unit you want to convert to in the "To" dropdown.
  4. Read the converted result instantly below the inputs.
  5. Use the "Swap Units" button to quickly reverse the From and To units.
  6. Check the Quick Reference table to see your input value converted into every other supported unit at once.

Formula & How It Works

Volume Conversion Formula

result = value × (fromFactor ÷ toFactor)

Every unit has a conversion factor expressed in milliliters (the base unit). The value is normalized to milliliters (value × fromFactor), then divided by the target unit's factor.

US Gallons to Liters

liters = gallons × (3785.41 ÷ 1000)

1 US gallon = 3785.41 ml, and 1 liter = 1000 ml, so converting means multiplying by the gallon factor and dividing by the liter factor.

US vs. Imperial Gallon

1 US gallon = 3785.41 ml; 1 Imperial gallon = 4546.09 ml

The Imperial gallon is roughly 20% larger than the US gallon, so selecting the correct variant matters for accurate results.

Practical Examples & Common Use Cases

Converting US gallons to liters for a recipe

2 US gallons × (3785.41 ÷ 1000) = 2 × 3.78541 = 7.57082 liters.

Converting fluid ounces to tablespoons

3 fl oz × (29.5735 ÷ 14.7868) = 3 × 2 = 6 tablespoons (1 fl oz always equals exactly 2 tablespoons).

Converting cubic feet to liters for shipping volume

5 ft³ × (28316.8 ÷ 1000) = 5 × 28.3168 ≈ 141.58 liters.

Frequently Asked Questions

There are approximately 4.227 US cups in one liter. This is based on the US customary cup, which holds 236.588 milliliters. If you are using a metric cup (250 ml, common in Australia and some other countries), then there are exactly 4 metric cups in one liter. Always check which cup measurement your recipe or instructions refer to.

A US gallon holds approximately 3,785.41 milliliters (about 3.785 liters), while an Imperial gallon holds approximately 4,546.09 milliliters (about 4.546 liters). The Imperial gallon is roughly 20% larger than the US gallon. The US gallon is used in the United States, while the Imperial gallon is used in the United Kingdom, Canada, and some Caribbean nations.

For all practical purposes, yes. One cubic centimeter (cm3) is exactly equal to one milliliter (ml). This equivalence was established by international agreement. You will often see both units used interchangeably in medical, scientific, and cooking contexts. Engine displacement, for example, may be listed in either cubic centimeters (cc) or milliliters.

One US fluid ounce equals exactly 2 US tablespoons. So to convert fluid ounces to tablespoons, simply multiply by 2. For example, 3 fluid ounces equals 6 tablespoons. Conversely, divide tablespoons by 2 to get fluid ounces. This relationship is consistent across US customary measurements and is particularly handy for cooking and baking.

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