Convert US gallon to milliliter
1 gal = 3,785.411784 mL
1 gal = 3,785.4 mL
1 gal in every volume unit
| cubic millimeter | 3,785,400 mm³ |
| microliter | 3,785,400 μL |
| milliliter | 3,785.4 mL |
| cubic centimeter | 3,785.4 cm³ |
| US teaspoon | 768 tsp |
| centiliter | 378.54 cL |
| US tablespoon | 256 tbsp |
| cubic inch | 231 in³ |
| imperial fluid ounce | 133.23 imp fl oz |
| US fluid ounce | 128 fl oz |
| deciliter | 37.854 dL |
| US cup | 16 cup |
| US pint | 8 pt |
| imperial pint | 6.6614 imp pt |
| US quart | 4 qt |
| liter | 3.7854 L |
| cubic decimeter | 3.7854 dm³ |
| imperial quart | 3.3307 imp qt |
| board foot | 1.6042 fbm |
| US gallon | 1 gal |
| imperial gallon | 0.83267 imp gal |
| cubic foot | 0.13368 ft³ |
| US bushel | 0.10742 bu |
| hectoliter | 0.037854 hL |
| US beer barrel | 0.032258 bbl beer |
| oil barrel | 0.02381 bbl |
| cubic yard | 0.0049511 yd³ |
| cubic meter | 0.0037854 m³ |
| kiloliter | 0.0037854 kL |
| hundred cubic feet | 0.0013368 CCF |
| cord | 0.0010444 cord |
| acre-foot | 0.0000030689 ac·ft |
| million US gallons | 0.000001 MG |
| cubic kilometer | 3.7854e-12 km³ |
How the conversion works
Multiply by 3,785.411784 to go from US gallon to milliliter, or divide by it to go back. Every conversion on this site routes through the SI value (m³) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? milliliter to US gallon — 1 mL = 0.0002641720524 gal.
US gallon to milliliter — common values
| 1 gal | 3,785.4118 mL |
| 2 gal | 7,570.8236 mL |
| 3 gal | 11,356.235 mL |
| 5 gal | 18,927.059 mL |
| 10 gal | 37,854.118 mL |
| 15 gal | 56,781.177 mL |
| 20 gal | 75,708.236 mL |
| 25 gal | 94,635.295 mL |
| 50 gal | 189,270.59 mL |
| 75 gal | 283,905.88 mL |
| 100 gal | 378,541.18 mL |
| 250 gal | 946,352.95 mL |
| 500 gal | 1,892,705.9 mL |
| 1000 gal | 3,785,411.8 mL |