My car gets 8 liters per 100 km. What's that in miles per gallon (mpg)?

8 L/100km ≈ 29 mpg. Lower numbers in metric (8 is efficient); higher numbers in imperial (29 is excellent). Use a fuel economy calculator for accuracy. For speed references, see [km/h to mph]({/speed/kmh-to-mph/}).

I'm buying bottled water. A bottle says 1.5 liters. How big is that?

1.5 liters = 0.396 US gallons, or about 2.5 US pints. It's a large single-serving bottle, common in Europe and Asia. (Note: UK imperial gallons are larger—4.546 L per gallon.)

How do I estimate liters to gallons mentally?

Rough estimate: divide by 4 (or multiply by 0.25). Example: 8 liters ÷ 4 = 2 gallons. For precision, multiply by 0.264172. For the reverse, see [gallons to liters]({/volume/gallons-to-liters/}).

I'm buying paint and the can says 10 liters. How many gallons is that?

10 liters ≈ 2.64 gallons. Paint is sometimes sold in metric sizes abroad (5L, 10L, 20L), which translates to roughly 1.3, 2.6, and 5.3 gallons respectively.

Liters (L) to Gallons (gal) Converter

Enter a value to instantly convert between volume units.

From

Precision4 dp

1 Liter = 0.2642 US Gallon

Key Formulas

Liter → US Gallon

gal = L × 0.264172

US Gallon → Liter

L = gal × 3.78541

US Cup → Milliliter

mL = cup × 236.588

Milliliter → US Cup

cup = mL × 0.00422675

Formula

gallons = liters × 0.264172

One liter equals 0.264 US gallons. The liter is the global metric standard for volume. Whether you're checking fuel efficiency on an international rental car, comparing beverage bottle sizes, or adjusting recipes across regions, this conversion handles both everyday and specialized needs.

Source: NIST SP 811, Table B.8

Frequently Asked Questions

Real-World Examples

Large bottle of soda or water. A 2-liter bottle is common in most countries; that's about a half-gallon.

2 L = 0.53 gal

Gallon of milk or paint. US standard jug size; exactly 3.78541 liters by definition.

3.8 L = 1 gal

Fuel tank for a mid-size car. Full tank is roughly 50 liters or 13 gallons; varies by vehicle.

50 L = 13.2 gal

Large water storage container. Used for emergency water storage, garden tanks, or industrial use.

200 L = 52.8 gal

gallons to liters cups to ml ml to cups fl oz to ml ml to fl oz

Liters (L) to Gallons (gal) Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

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