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5 Gallons to Liters

5 gallons equals 18.93 liters using the gal to L formula. Scroll down for the full calculation.

5 gal = 18.93 L
gal × 3.785412 = L
Try: 4 gal to L 6 gal to L 10 gal to L
5 gal is also
5 gal = 18,927.06 mL 5 gal = 80 cup 5 gal = 640 fl oz 5 gal = 40 pt 5 gal = 20 qt 5 gal = 1,280 tbsp 5 gal = 3,840 tsp
gal
18.93 L

How to Convert Gallons to Liters

gal × 3.785412 = L
  1. Start with 5 gal
  2. Multiply by 3.785412: 5 × 3.785412 = 18.93
  3. Result: 5 gal = 18.93 L

The same formula works for any value. Multiply by 3.785412 to go from gallons to liters.

Quick Mental Conversion

For a rough estimate, multiply gallons by 4. For example, 5 gal × 4 = 20 L. The exact answer is 18.93 L.

Common Gallon to Liter Conversions

Gallons (gal) Liters (L)
1 gal 3.79 L
2 gal 7.57 L
5 gal 18.93 L
10 gal 37.85 L
15 gal 56.78 L
20 gal 75.71 L
25 gal 94.64 L
50 gal 189.27 L
75 gal 283.91 L
100 gal 378.54 L
250 gal 946.35 L
500 gal 1,892.71 L
1,000 gal 3,785.41 L
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Frequently Asked Questions

5 gallons equals 18.93 liters.
The formula is: gal × 3.785412 = L. See the gal to L formula page for worked examples.
Use the liters to gallons converter. The reverse formula is: L × 0.264172 = gal.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (gal × 3.785412 = L) is based on internationally defined standards. Displayed results are rounded for readability, while the calculator uses the full-precision factor.
person Written by Sean Day verified Reviewed by UnitCompare update Last updated Mar 28, 2026