Sustainable fuel conversions

Different companies use different measurements for SAF production, hopefully the below conversion calculator will help. For volume to mass conversions, a standard average density of 0.8 was used. This tool should not be used for flight operational purposes.

In general, when speaking about SAF deployment, we will be using metric tonnes as the measurement. This is to simplify and standardise the measures used as much as possible and also useful to relate to the reason we are shifting to SAF instead of fossil fuel - the reduction in CO2 emissions, which are commonly referred to in metric tonnes.

It also avoids measurement issues that occur when speaking about fuel in a volumetric sense: depending on the ambient temperature, the volume of fuel can go up or down (based on the expansion of the liquid), whereas the weight stays the same.

• A barrel of oil is a standard international measurement of volume primarily associated with the oil industry and equalling 42 US gallons, or very close to 159 litres of oil. Barrel is also shortened to bbl.
• Sometimes, aside from litres, tonnes and gallons, fuel is also measure in cubic metres (m³).
• As noted above, the volume of a liquid can change, depending on the ambient temperature, so for the conversions noted on the right, a generally accepted average worldwide density of jet fuel of 0.8 is used:
  • If 1 kilogram of water is 1 litre, 0.8 kilograms of jet fuel is 1 litre.
• 1 tonne (1,000 kilograms) of jet fuel is 1,250 litres.
• 1,000 tonnes is 1 kilotonne
• 1,000,000 tonnes is 1 megatonne (Mt)
• Tonne is a metric tonne
• Ton is a US ton (a different measure), but sometimes these words are unknowingly interchanged.
• Gallons (to the right) are US Gallons
• Litre is the European spelling, Liter is the US spelling for the same measurement.