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Aviation Fuel Conversion Calculator

Convert between liters, pounds, lbs, kilograms, kg, US gallons, and Imperial gallons for aviation fuels. Supports Jet A1, Jet B, and Avgas 100LL with industry-standard densities. Used by aircraft maintenance engineers and pilots for weight & balance, fuel planning, and refueling.

Fuel Conversion Tool

Select Fuel Type

Jet A1 Jet B AvGas 100LL

Liters Metric

Pounds (lbs) Weight

Kilograms (kg) Metric

US Gallons US

Imperial Gallons UK

Standard Aviation Fuel Densities (at 15°C / 59°F)

Fuel Type	lbs/US gal	kg/L	kg/US gal
Jet A1	6.71	0.804	3.044
Jet B	6.52	0.780	2.957
Avgas 100LL	6.02	0.720	2.721

Source: ASTM D1655 (Jet A), ASTM D910 (Avgas), ICAO Doc 9976.