At its peak, Romania was by far its largest in terms of territory during the interwar period, specifically in the 1920s–1930s, when it was known as “Greater Romania”.

Surface area at the peak

  • Greater Romania covered about 295,000–296,000 km² (around 114,000 square miles), which was roughly double the modern Romanian area.
  • This expansion came after World War I when Romania incorporated Transylvania, Bessarabia, and Bukovina , greatly increasing its size.

Modern vs. peak size

For comparison, today’s Romania is about 238,400 km² , making it the 12th‑largest country in Europe , but still notably smaller than its interwar maximum.

Quick comparison table

Period| Approx. area (km²)| Notes
---|---|---
Greater Romania (peak)| 295,000–296,000| Interwar era, “Greater Romania” after WWI 15
Present‑day Romania| 238,400| 12th‑largest in Europe 37

So, at its peak Romania was about 295,000–296,000 square kilometers , the largest in its history.