Volume Converter
Free Volume Converter - Liters to Gallons, Gallons to Liters, US Gallon to Liters - Convert L to Gallons Instantly
Convert any volume measurement instantly with OmniConverter's free online volume converter. 1 US gallon equals 3.785 liters, 1 liter equals 1,000 milliliters, and 1 cup equals 236.6 milliliters. Supports liters, milliliters, US gallons, fluid ounces, cups, pints, quarts, and cubic meters. Perfect for cooking, chemistry, or fuel calculations where accurate liquid measurements are essential.
How It Works
Convert in three simple steps.
Enter the Volume You Want to Convert
Type your numeric volume value into the Input Value field. For example, enter 2 to convert 2 gallons, or 500 to convert 500 milliliters.
Choose Source and Target Volume Units
Select your starting unit on the left (e.g., liters, milliliters, US gallons, fluid ounces, cubic feet) and your output unit on the right dropdown.
Get Your Instant Volume Conversion
The converted volume result appears right away. Useful for cooking, chemistry, fuel calculations, and any situation requiring liquid or capacity conversions between metric and US/UK imperial units.
Popular Volume Conversions
Common Benchmarks
Reference
1 L → L
1 L
Reference
1 L → mL
1000 mL
Reference
1 L → m³
0.001 m³
Reference
1 L → gal
0.2641721769 gal
Reference
1 L → gal (UK)
0.2199692483 gal (UK)
Reference
1 L → qt
1.0566881491 qt
Reference
1 L → pt
2.1133785315 pt
Reference
1 L → cup
4.2267570629 cup
Real-World Use Cases
Volume conversion is used in cooking and baking (adapting US recipes that use cups and fluid ounces to metric measurements), brewing and winemaking, fuel economy calculations (liters per 100 km vs miles per gallon), chemistry and pharmacy (precise liquid measurements), aquarium and pool capacity, HVAC and plumbing (duct and pipe flow rates), and international shipping of liquids.
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Get Embed CodeFrequently asked questions
Quick answers to common conversion questions
What is the UK vs US gallon table?+
UK gallon = 4.54609 L, US gallon = 3.78541 L. 1 litre = 0.219969 UK gal = 0.264172 US gal. Table 1-10 litres to UK/US gallons below. For example, 10 L = 2.1997 UK gal = 2.6417 US gal.
How many litres in a UK gallon vs US gallon?+
UK gallon is exactly 4.54609 litres, US gallon is 3.78541 litres. Difference 0.76068 L (20.02%). UK = US ×1.20095.
How do I use the UK vs US gallon table?+
Find litres in the left column, read UK gallons in the middle and US gallons on the right. Example: 20 L = 4.399 UK gal = 5.283 US gal. Type any value above.
How do I convert liters to gallons?+
Multiply liters by 0.264172 to estimate US gallons.
What is the difference between fluid ounces and ounces?+
Fluid ounces measure volume, while ounces measure mass.
How do I convert milliliters to cups?+
Divide milliliters by 236.588 to get US cups.
What is a cubic meter?+
A cubic meter measures three-dimensional space and is equal to 1,000 liters.
How do I convert tablespoons to teaspoons?+
Multiply tablespoons by 3 to get teaspoons.
Can I convert gallons to liters easily?+
Yes. Multiply gallons by 3.78541 to get liters.
Why are there US and imperial gallons?+
Different measurement systems use different gallon sizes, so choose the right one for your region.
What is the best unit for cooking?+
Milliliters, liters, cups, teaspoons, and tablespoons are commonly used in recipes.
How do I convert cubic centimeters to milliliters?+
They are equivalent: 1 cubic centimeter equals 1 milliliter.
Are volume conversions affected by temperature?+
The numeric conversion itself is fixed, but real-world material density can vary with temperature.
