Iran vs Japan: Annual CO₂ emissions from gas
Iran
492.66 million tonnes
in 2024
Japan
195.30 million tonnes
in 2024
Iran rank
4th
Japan rank
7th
Annual CO₂ emissions from gas over time
- Iran
- Japan
How they compare
Iran currently reports 492.66 million tonnes against 195.30 million tonnes in Japan, a difference of 297.36 million tonnes.
That makes Iran's figure about 2.5 times Japan's.
The two have swapped places 5 times across 110 shared years of data; in 1906 it was Japan ahead.
Iran ranks 4th and Japan ranks 7th of 146 countries.
Across the 13 decades both report, Iran averaged higher in 5 and Japan in 7.
Head to head by decade
| Decade | Iran | Japan | Difference | Ahead |
|---|---|---|---|---|
| 1900s | 0 tonnes | 0 tonnes | 0 tonnes | — |
| 1910s | 0 tonnes | 19,134 tonnes | 19,134 tonnes | Japan |
| 1920s | 0 tonnes | 50,196 tonnes | 50,196 tonnes | Japan |
| 1930s | 0 tonnes | 90,866 tonnes | 90,866 tonnes | Japan |
| 1940s | 0 tonnes | 86,470 tonnes | 86,470 tonnes | Japan |
| 1950s | 1.21 million tonnes | 710,082 tonnes | 496,792 tonnes | Iran |
| 1960s | 3.03 million tonnes | 3.41 million tonnes | 389,830 tonnes | Japan |
| 1970s | 20.85 million tonnes | 18.64 million tonnes | 2.21 million tonnes | Iran |
| 1980s | 24.67 million tonnes | 69.12 million tonnes | 44.44 million tonnes | Japan |
| 1990s | 74.29 million tonnes | 140.39 million tonnes | 66.10 million tonnes | Japan |
| 2000s | 189.54 million tonnes | 185.05 million tonnes | 4.49 million tonnes | Iran |
| 2010s | 344.98 million tonnes | 243.15 million tonnes | 101.83 million tonnes | Iran |
| 2020s | 481.30 million tonnes | 205.54 million tonnes | 275.76 million tonnes | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual co₂ emissions from gas, Iran or Japan?
- Iran, at 492.66 million tonnes against 195.30 million tonnes in Japan as of 2024.
- What is the difference in annual co₂ emissions from gas between Iran and Japan?
- 297.36 million tonnes, with Iran ahead.
- How many years of comparable data are there for Iran and Japan?
- 110 years are reported by both, from 1906 to 2024.
- How do Iran and Japan rank globally for annual co₂ emissions from gas?
- Iran ranks 4th and Japan ranks 7th of 146 countries.
- Where does this data come from?
- Global Carbon Budget (2025) – with major processing by Our World in Data, published as Annual CO₂ emissions from gas. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual emissions of carbon dioxide (CO₂) from gas, measured in tonnes.