Liters to Gallons (US) Converter

1 L equals 0.26417205 gal, and 1 gal equals 3.7854118 L. Enter a value in either box to convert liters to gallons (us) and back. Formula: cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L).

· CalcFlow Editorial

1 L = 0.26417205 gal

Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.

Liters to Gallons (US) Conversion Table

LitersGallons (US)
1 L0.26417205 gal
2 L0.5283441 gal
5 L1.3208603 gal
10 L2.6417205 gal
20 L5.283441 gal
50 L13.208603 gal
100 L26.417205 gal
500 L132.08603 gal
1,000 L264.17205 gal

Gallons (US) to Liters Conversion Table

Gallons (US)Liters
1 gal3.7854118 L
2 gal7.5708236 L
5 gal18.927059 L
10 gal37.854118 L
20 gal75.708236 L
50 gal189.27059 L
100 gal378.54118 L
500 gal1,892.7059 L
1,000 gal3,785.4118 L

Worked example: 10 L = 2.6417205 gal. 3 US gallons is 3 x 3.785411784 = 11.356 liters. A 2 liter bottle holds 2 / 0.2365882365 = 8.45 US cups.

Need other units? Open the full Volume Converter.

Formula

cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L)

Understanding Volume Conversion

Volume units come in two families that share names: US customary (gallon, quart, pint, cup, fluid ounce) and British imperial (the same names with different sizes). The US gallon is defined as exactly 231 cubic inches, or 3.785411784 liters. The imperial gallon is exactly 4.54609 liters, about 20 percent larger. Cooking measures such as teaspoons and tablespoons are derived from the US gallon here.

Tips and Best Practices

  • 1A US gallon is about 3.785 liters; an imperial gallon is about 4.546 liters. Check which one a recipe or fuel figure means.
  • 2One US cup is about 236.6 mL, though nutrition labels round a cup to 240 mL.
  • 3For liquids in cooking, 3 teaspoons make 1 tablespoon and 16 tablespoons make 1 US cup.

Real-World Example

3 US gallons is 3 x 3.785411784 = 11.356 liters. A 2 liter bottle holds 2 / 0.2365882365 = 8.45 US cups.

Common Mistakes to Avoid

  • Using US gallons for a UK recipe or car fuel figure, which can be off by about 20 percent.
  • Assuming a fluid ounce and an ounce of weight are the same; they measure different things.
  • Mixing the US pint (473 mL) with the imperial pint (568 mL).

How to Use

  1. Type a number in the Liters box.
  2. The Gallons (US) result appears instantly; you can also edit the Gallons (US) box to convert backwards.
  3. Use the swap button to reverse the direction and Copy result to copy the answer.

Frequently Asked Questions

Q

How many gallons (us) are in 1 L?

1 L equals 0.26417205 gal.
Q

How many liters are in 1 gal?

1 gal equals 3.7854118 L.
Q

What is the formula to convert liters to gallons (us)?

cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L).
Q

How many milliliters are in a cup?

A US customary cup is 236.5882365 mL. Many nutrition labels use a rounded 240 mL cup.

Sources: NIST Handbook 44 Appendix B (US gallon = 231 cubic inches; tablespoon, teaspoon, cup, pint, quart); UK Weights and Measures Act (imperial gallon = 4.54609 L); 42-gallon petroleum barrel.