Iran vs Japan: Fossil fuel consumption (fuel Energy Institute – Stati)
Iran
3,656 terawatt-hours
in 2025
Japan
3,923 terawatt-hours
in 2025
Iran rank
7th
Japan rank
6th
Fossil fuel consumption (fuel Energy Institute – Stati) over time
- Iran
- Japan
How they compare
Japan currently reports 3,923 terawatt-hours against 3,656 terawatt-hours in Iran, a difference of 267 terawatt-hours.
That makes Japan's figure about 1.1 times Iran's.
Across all 61 years both countries report, Japan has been ahead every year.
Iran ranks 7th and Japan ranks 6th of 220 countries.
Japan has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Iran | Japan | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 111.88 terawatt-hours | 2,139 terawatt-hours | 2,027 terawatt-hours | Japan |
| 1970s | 291.93 terawatt-hours | 3,767 terawatt-hours | 3,475 terawatt-hours | Japan |
| 1980s | 548.94 terawatt-hours | 3,810 terawatt-hours | 3,261 terawatt-hours | Japan |
| 1990s | 1,031 terawatt-hours | 4,726 terawatt-hours | 3,694 terawatt-hours | Japan |
| 2000s | 1,872 terawatt-hours | 5,094 terawatt-hours | 3,222 terawatt-hours | Japan |
| 2010s | 2,765 terawatt-hours | 4,947 terawatt-hours | 2,182 terawatt-hours | Japan |
| 2020s | 3,488 terawatt-hours | 4,155 terawatt-hours | 667.05 terawatt-hours | Japan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher fossil fuel consumption, Iran or Japan?
- Japan, at 3,923 terawatt-hours against 3,656 terawatt-hours in Iran as of 2025.
- What is the difference in fossil fuel consumption between Iran and Japan?
- 267 terawatt-hours, with Japan ahead.
- How many years of comparable data are there for Iran and Japan?
- 61 years are reported by both, from 1965 to 2025.
- How do Iran and Japan rank globally for fossil fuel consumption?
- Iran ranks 7th and Japan ranks 6th of 220 countries.
- Where does this data come from?
- Energy Institute – Statistical Review of World Energy (2026) and other sources – with major processing by Our World in Data, published as Fossil fuel consumption. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours. Fossil fuels include coal, oil, and gas.