South America is about 1.9 times bigger than China.

China is approximately 9,596,960 sq km, while South America is approximately 17,840,000 sq km, making South America 86% larger than China.
Tip: This to-scale comparison of China vs. South America 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.