Convert Liters to US Gallons

Formula

gal (US) = L × 0.2641720523581

or gal (US) = L ÷ 3.785411784

Derivation from SI units:

• 1 L = 1 dm³ = (0.1 m)³ = 10⁻³ m³
• 1 US gal = 231 in³ = 231 × (0.0254 m)³ = 0.003785411784 m³
• 1 L = 0.001 m³ ÷ 0.003785411784 m³ per gal (US) = 0.2641720523581 gal (US)

Both units are defined exactly, so the factor is exact. Liter definition: liter; US Gallon definition: US gallon.

Worked examples

1. A standard 208 L steel drum holds 54.94778689 gal (US).
   208 L × 0.2641720524 = 54.94778689 gal (US)
2. A 1000 L IBC tote holds 264.1720524 gal (US).
   1000 L × 0.2641720524 = 264.1720524 gal (US)

Where it's used

Product volumes in litres are converted to US gallons for US labelling, shipping documents and fuel calculations.

Liter to other volume units

Frequently asked questions

Sources

• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8, non-SI units accepted for use with the SI.
• Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "gallon [U.S.] (gal)".
• NIST Handbook 44, Appendix C: General Tables of Units of Measurement, National Institute of Standards and Technology , Appendix C.

Last reviewed: 2026-10-15. Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.