Convert Watt-Hours to Ton of Oil Equivalent
Convert Watt-Hours (Wh) to Ton of Oil Equivalent (toe) instantly and accurately.
Conversion Formula
toe = Wh × 8.598452279e-8
About Watt-Hours
A watt-hour (Wh) is the energy delivered by 1 watt for one hour - exactly 3,600 J. It is the practical unit for small-scale electrical energy: a 10,000 mAh 5 V power bank stores 50 Wh; a laptop battery holds 50-90 Wh; a smartphone battery holds 10-15 Wh; an AA alkaline cell stores ~3 Wh. LED lamps labelled 9 W save 51 Wh/h over a 60 W incandescent. IATA dangerous-goods rules use Wh as the threshold for lithium batteries in aircraft: cells >20 Wh and batteries >100 Wh need special approval. 1 Wh = 3,600 J = 3.412 BTU.
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
| Watt-Hours (Wh) | Ton of Oil Equivalent (toe) |
|---|---|
| 1 Wh | 8.598 × 10-8 toe |
| 2 Wh | 1.72 × 10-7 toe |
| 5 Wh | 4.299 × 10-7 toe |
| 10 Wh | 8.598 × 10-7 toe |
| 25 Wh | 2.15 × 10-6 toe |
| 50 Wh | 4.299 × 10-6 toe |
| 100 Wh | 8.598 × 10-6 toe |