Gallons to Liters Converter
Updated Formulas shown
Multiply US gallons by 3.785411784 to get liters: 5 gal = 18.93 L. An imperial (UK) gallon is larger — 4.54609 L.
Formula: liters = gallons × 3.785411784 (exact ratio, shown rounded)
Common values: gallons → liters
| gallons | liters |
|---|---|
| 3.78541 L | |
| 7.57082 L | |
| 11.3562 L | |
| 18.9271 L | |
| 37.8541 L | |
| 75.7082 L | |
| 94.6353 L | |
| 189.271 L | |
| 378.541 L | |
| 946.353 L | |
| 1,892.71 L | |
| 3,785.41 L |
5 gal in every volume unit
- 18,927.1 mL
- 18.9271 L
- 0.0189271 m³
- 3,840 tsp
- 1,280 tbsp
- 640 fl oz
- 80 cup
- 78.8627 cup (legal)
- 75.7082 cup (metric)
- 40 pt
- 20 qt
- 1,155 in³
- 0.668403 ft³
- 0.0247557 yd³
- 4.16337 imp gal
- 666.139 imp fl oz
How to convert gallons to liters
- Type the value in gallons into the converter (or into the right-hand box to go the other way).
- Multiply by 3.785411784 to get liters.
- Round to a sensible precision with the Decimals control; the table below covers the values people look up most.
Gallon to liter formula
liters = gallons × 3.785411784 — 1 gal = 3.78541178 L. Both units are defined exactly (NIST SP 811); the factor above is rounded to 10 decimals, and the converter uses the full-precision ratio.
gal to L conversion table
| gallons | liters (US gal) | liters (imperial gal) |
|---|---|---|
| 0.25 | 0.95 | 1.14 |
| 0.5 | 1.89 | 2.27 |
| 1 | 3.79 | 4.55 |
| 2 | 7.57 | 9.09 |
| 3 | 11.36 | 13.64 |
| 4 | 15.14 | 18.18 |
| 5 | 18.93 | 22.73 |
| 6 | 22.71 | 27.28 |
| 7 | 26.5 | 31.82 |
| 8 | 30.28 | 36.37 |
| 9 | 34.07 | 40.91 |
| 10 | 37.85 | 45.46 |
| 15 | 56.78 | 68.19 |
| 20 | 75.71 | 90.92 |
| 25 | 94.64 | 113.65 |
| 30 | 113.56 | 136.38 |
| 40 | 151.42 | 181.84 |
| 50 | 189.27 | 227.3 |
| 55 | 208.2 | 250.03 |
| 75 | 283.91 | 340.96 |
| 80 | 302.83 | 363.69 |
| 100 | 378.54 | 454.61 |
Paint coverage in metric
| ft² per gallon | m² per liter |
|---|---|
| 250 | 6.14 |
| 300 | 7.36 |
| 350 | 8.59 |
| 400 | 9.82 |
| 450 | 11.04 |
Paint and finishes
US paint is sold in quarts (0.95 L), gallons (3.79 L) and 5-gallon pails (18.9 L). European tins come in 1, 2.5, 5 and 10 L, so a 2.5 L tin is about 2/3 of a gallon. Interior paint covers about 350–400 ft² per gallon per coat — 8.6–9.8 m² per liter. The paint calculator does the wall math for you.
Water heaters are rated in gallons: a 40 gal tank holds 151 L, a 50 gal tank 189 L.
Related converters & calculators
- Liters to Gallons ConverterDivide by 3.78541.
- Cubic Feet to Gallons Converter1 ft³ = 7.48052 US gallons.
- Paint CalculatorHow much paint do you need? Enter room size, doors, windows and coats to get gallons of paint and primer.
- mL to Ounces ConverterDivide by 29.5735 (US fl oz).
- Ounces to mL ConverterMultiply by 29.5735.
- Cups to mL Converter1 US cup = 236.6 mL.
- Cubic Meters to Cubic Yards Converter1 m³ = 1.30795 yd³.
- Cubic Yards to Cubic Meters Converter1 yd³ = 0.764555 m³.
Frequently asked questions
How many liters in a gallon?
3.785 L in a US gallon; 4.546 L in an imperial gallon.
How many liters is a 5-gallon bucket?
18.93 L.
How many liters is a 55-gallon drum?
208.2 L.
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Estimates only. Check quantities with your supplier or contractor before ordering.