Liters to Gallons - Fuel & Liquid Volume Converter

Convert liters to US gallons for fuel economy, cooking recipes, or tank capacity. 1 L = 0.264 gal. Also shows UK imperial gallons.

Quick Reference

Liters	US Gallons	Context
1 L	0.26 gal	Large water bottle
5 L	1.32 gal	Small jerry can
10 L	2.64 gal	Bucket
20 L	5.28 gal	Large water jug
50 L	13.21 gal	Fuel can
100 L	26.42 gal	Small fuel tank

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Frequently Asked Questions

Divide liters by 3.78541 (or multiply by 0.264172) to get US gallons. The formula is: gallons = liters ÷ 3.78541. This is based on the definition that 1 US gallon = exactly 231 cubic inches = 3.78541 liters.

Essential for calculating fuel consumption when traveling to the US, understanding gas tank capacity for American vehicles, converting engine displacement specs, following recipes from US cookbooks, purchasing beverages and liquids in US quantities, and understanding aquarium sizes for fish keeping.

The gallon evolved from medieval wine measures, with different definitions in the UK and US. The US gallon was standardized in 1832 as 231 cubic inches. The liter, part of the metric system, was defined in 1795 as one cubic decimeter. Today, the UK uses imperial gallons (4.546L), while the US uses a smaller gallon (3.785L).

For fuel purchases and tank capacity, 1-2 decimal places work well (e.g., 45.5 gallons). For cooking recipes, 2 decimal places ensure accuracy. For scientific calculations involving fluid volumes, use 3-4 decimal places. For rough estimates (like comparing fuel economy), rounding to nearest 0.5 gallon is acceptable.

This is an inverse relationship. Approximate formula: MPG ≈ 235 ÷ (L/100km). For example, 8 L/100km ≈ 235 ÷ 8 = 29.4 MPG. This involves converting both distance (km to miles) and volume (liters to gallons), then inverting because L/100km measures consumption while MPG measures efficiency.

A 2-liter soda bottle is 0.53 gallons. A typical sedan with 55L fuel tank holds 14.5 gallons. A 5-liter water jug is 1.32 gallons. An Olympic swimming pool (2.5 million liters) holds 660,000 gallons. A standard wine bottle (750ml) is 0.198 gallons or about 1/5 gallon.

Yes, completely private. All conversions are performed locally in your browser. No volume data is sent to any server or stored anywhere. The tool works offline after initial page load, ensuring your measurements remain confidential on your device.

This tool handles one conversion at a time for quick lookups. For bulk conversions, use a spreadsheet with the formula =A1/3.78541 or =A1*0.264172, where A1 contains liters. This allows you to convert entire columns of data efficiently.

US gallons (used in the US): 1 gallon = 3.78541 liters. Imperial gallons (used in UK/Canada): 1 gallon = 4.54609 liters. Imperial gallons are about 20% larger. When converting liters to gallons, always specify which gallon system you're using. This converter uses US gallons by default as they're more common internationally.

Quick estimate: Divide liters by 4 to get approximate gallons (slightly overstates). For example, 20L ÷ 4 = 5 gallons (actual: 5.28 gallons). For better accuracy, remember that 3.8 liters ≈ 1 gallon, so divide by 3.8. Or use the ratio: 4 liters is roughly 1 gallon plus a quart.

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