Russia is clearly the larger of the two: about 17,098,246 km² against 8,510,346 km², roughly 2× at true size. Drag one onto the other on the map above to feel the gap.
Brazil sits in South America, Russia in Europe. On the old Mercator map the latitude gap distorted how large each felt beside the other; at true size the answer is simply 2×.
The old map muddied it further: Mercator inflates Brazil about 1.04× and Russia about 6.1×, so on a Mercator-style map this pair appears 11.8× apart instead of the true 2×.
Brazil fits 2× into Russia.
Brazil vs Russia: key figures
| Measure | Brazil | Russia |
|---|
| True area | 8,510,346 km² · #5 | 17,098,246 km² · #1 |
| Mercator inflation | 1.04× | 6.1× |
| Apparent on Mercator | 8,810,761 km² | 103,611,951 km² |