Portugal vs Slovakia: Coal reserves
Portugal
3.00 million tonnes
in 2023
Slovakia
19.00 million tonnes
in 2023
Portugal rank
81st
Slovakia rank
78th
Coal reserves over time
- Portugal
- Slovakia
How they compare
Slovakia currently reports 19.00 million tonnes against 3.00 million tonnes in Portugal, a difference of 16.00 million tonnes.
That makes Slovakia's figure about 6.3 times Portugal's.
Across all 16 years both countries report, Slovakia has been ahead every year.
Portugal ranks 81st and Slovakia ranks 78th of 212 countries.
Slovakia has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Portugal | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 36.00 million tonnes | 178.50 million tonnes | 142.50 million tonnes | Slovakia |
| 2010s | 16.20 million tonnes | 69.70 million tonnes | 53.50 million tonnes | Slovakia |
| 2020s | 3.00 million tonnes | 19.00 million tonnes | 16.00 million tonnes | Slovakia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher coal reserves, Portugal or Slovakia?
- Slovakia, at 19.00 million tonnes against 3.00 million tonnes in Portugal as of 2023.
- What is the difference in coal reserves between Portugal and Slovakia?
- 16.00 million tonnes, with Slovakia ahead.
- How many years of comparable data are there for Portugal and Slovakia?
- 16 years are reported by both, from 2008 to 2023.
- How do Portugal and Slovakia rank globally for coal reserves?
- Portugal ranks 81st and Slovakia ranks 78th of 212 countries.
- Where does this data come from?
- U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as Coal reserves. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Proved reserves, measured in tonnes, are generally those quantities that can be recovered in the future from known reservoirs under existing economic and operating conditions, according to geological and engineering information.