Burma is about 2.8 times bigger than Guinea.

Guinea is approximately 245,857 sq km, while Burma is approximately 676,578 sq km, making Burma 175% larger than Guinea. Meanwhile, the population of Guinea is ~15.1 million people (39.8 million more people live in Burma).
Tip: This to-scale comparison of Guinea vs. Burma uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.