Tonne of Oil Equivalent - Conversion Factors

Conversion Factors

• 1 barrel of oil equivalent (boe) contains approximately 0.146 toe (i.e. there are approximately 6.841 boe in a toe).
• 1 t diesel = 1.01 toe
• 1 m3 diesel = 0.98 toe
• 1 t petrol = 1.05 toe
• 1 m3 petrol = 0.86 toe
• 1 t biodiesel = 0.86 toe
• 1 m3 biodiesel = 0.78 toe
• 1 t bioethanol = 0.64 toe
• 1m3 bioethanol = 0.51 toe
• 1 MWh = 0.086 toe (therefore 1 toe = 11630.0 KWh)
• at thermal power plant, 1 MWh generated with 0.22 toe fuel or 0.39 MWh with 0.086 toe (39% thermal to electrical conversion efficiency)

It is important to note that toe should be used carefully when converting electrical units - for instance, BP's 2007 report used a factor of 38% efficiency (the average efficiency of OECD thermal generating units in 2006), or roughly 16 GJ per toe, when converting kilowatt-hours to toe.