A gallon of jet fuel typically weighs about 6.7 to 6.8 pounds under standard conditions. Details:
- Jet A / Jet A-1: commonly cited density around 0.78 to 0.80 kg/L, which translates to roughly 6.75 pounds per US gallon at 60°F (15.6°C) [web results indicate ~6.75 lb/gal in standard conditions].
- Temperature effects: fuel expands with heat and contracts with cold, so the exact weight per gallon can vary slightly with ambient temperature, but 6.7–6.8 lb/gal is a good typical value for planning and weight-and-balance calculations.
Notes:
- A “gallon” is a volume measure, while “pounds” is a weight measure; density (and thus weight per gallon) depends on temperature and fuel formulation.
- Avgas (aviation gasoline) differs and is typically around 6.0 lb/gal, but for jet engines the common figure is about 6.75 lb/gal at standard conditions.
If you need a precise figure for a specific temperature or fuel grade, I can provide a more exact conversion for that condition.
