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
0100.0M200.0M300.0M400.0M500.0M186819462024

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

Indicator
Annual CO₂ emissions from gas
Unit
tonnes
Source
Global Carbon Budget (2025) – with major processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
146 places, 14,474 data points, 1750–2024
Last refreshed

Annual emissions of carbon dioxide (CO₂) from gas, measured in tonnes.