Convert Kilocalories to Ton of Oil Equivalent
Convert Kilocalories (kcal) to Ton of Oil Equivalent (toe) instantly and accurately.
Conversion Formula
toe = kcal × 9.993312315e-8
About Kilocalories
A kilocalorie (kcal) - the food Calorie (capital C) on US and Canadian nutrition labels - is exactly 4,184 J. WHO recommends ~2,000-2,500 kcal/day for adults. Energy density of nutrients: fat 9 kcal/g, carbohydrate 4 kcal/g, protein 4 kcal/g, ethanol 7 kcal/g. Running at 10 km/h burns ~600-800 kcal/h. Standard free energy of ATP hydrolysis is approximately −7.3 kcal/mol (−30.5 kJ/mol). Pre-SI thermodynamic tables in the US and Japan use kcal/mol for reaction enthalpies. 1 kcal = 4,184 J = 4.184 kJ = 3.968 BTU = 1.163 Wh.
About Ton of Oil Equivalent
A ton of oil equivalent (toe) is the IEA standard for comparing primary energy sources - defined as exactly 41.868 GJ (= 10⁷ International Table kcal). IEA World Energy Balances report in Mtoe: global primary energy supply is ~580 EJ ≈ 13,860 Mtoe/year. One tonne of coal equivalent (tce) = 29.307 GJ = 0.7 toe. Natural gas: ~0.9 toe per 1,000 m³; one barrel of crude oil ≈ 0.136 toe. Average EU citizen uses ~3.0-3.5 toe/year for all energy needs. 1 toe = 41.868 GJ = 11.63 MWh = 39.683 MBTU.
Quick Reference Table
| Kilocalories (kcal) | Ton of Oil Equivalent (toe) |
|---|---|
| 1 kcal | 9.993 × 10-8 toe |
| 2 kcal | 1.999 × 10-7 toe |
| 5 kcal | 4.997 × 10-7 toe |
| 10 kcal | 9.993 × 10-7 toe |
| 25 kcal | 2.498 × 10-6 toe |
| 50 kcal | 4.997 × 10-6 toe |
| 100 kcal | 9.993 × 10-6 toe |