How many cubic meters are in one US gallon?

One US gallon equals 0.003785 m³. The formula is m³ = gal × 0.003785.

How do I convert US gallons to cubic meters?

Multiply the value in US gallons by 0.003785. For example, 100 × 0.003785 = 0.378541 — so 100 gal = 0.378541 m³.

How many US gallons are in one cubic meter?

One cubic meter equals 264.172052 gal.

Pair · linear · factor 0.003785

US gallons to cubic meters

galm³

Active unit

US gallons · ≈ 378.54 l (base)

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Frequently asked questions

Two glowing graduated measuring jugs of visibly different size — the smaller emerald, the larger violet-magenta — against a cosmic nebula and scattered stars

Volume

US vs imperial gallon — where the 20% comes from

Three gallons in one kingdom, wine against grain, a government that raised fuel duty without touching the rate, and British cars that "burn less" than identical American ones. Two gallons differ by a fifth — enough to ruin every fuel-price comparison, every recipe, and every economy figure.

10 min