Romania vs Slovenia: Average CO2 emissions per km from new passenger cars

Romania
116.2 Grams per kilometre
in 2025
Slovenia
116.3 Grams per kilometre
in 2025
Romania rank
16th
Slovenia rank
15th

Average CO2 emissions per km from new passenger cars over time

  • Romania
  • Slovenia
050100150200420142025

How they compare

Slovenia currently reports 116.3 Grams per kilometre against 116.2 Grams per kilometre in Romania, a difference of 0.1 Grams per kilometre.

The two have swapped places 2 times across 19 shared years of data; in 2007 it was Slovenia ahead.

Romania ranks 16th and Slovenia ranks 15th of 37 countries.

Across the 3 decades both report, Romania averaged higher in 2 and Slovenia in 1.

Head to head by decade

Decade Romania Slovenia Difference Ahead
2000s 155.93 Grams per kilometre 154.73 Grams per kilometre 1.2 Grams per kilometre Romania
2010s 137.97 Grams per kilometre 134.41 Grams per kilometre 3.56 Grams per kilometre Romania
2020s 122.9 Grams per kilometre 127.98 Grams per kilometre 5.08 Grams per kilometre Slovenia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average co2 emissions per km from new passenger cars, Romania or Slovenia?
Slovenia, at 116.3 Grams per kilometre against 116.2 Grams per kilometre in Romania as of 2025.
What is the difference in average co2 emissions per km from new passenger cars between Romania and Slovenia?
0.1 Grams per kilometre, with Slovenia ahead.
How many years of comparable data are there for Romania and Slovenia?
19 years are reported by both, from 2007 to 2025.
How do Romania and Slovenia rank globally for average co2 emissions per km from new passenger cars?
Romania ranks 16th and Slovenia ranks 15th of 37 countries.
Where does this data come from?
Eurostat, published as Average CO2 emissions per km from new passenger cars. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Romania vs Slovenia: Average CO2 emissions per km from new passenger cars. Statizoid, drawing on Eurostat. Retrieved 03 October 2026, from https://environment.statizoid.com/compare/average-co2-emissions-per-km-from-new-passenger-cars/romania/slovenia-2/

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About this data

Indicator
Average CO2 emissions per km from new passenger cars
Unit
Grams per kilometre
Source
Eurostat
Licence
CC BY 4.0 (Eurostat)
Coverage
38 places, 827 data points, 2000–2025
Last refreshed