Mẫu (Central Vietnam) to Ares: the quick answer
1 mẫu-t = 49.7 a
1 mẫu (central Vietnam) equals 49.7 ares
To convert mẫu (central Vietnam) to ares, multiply the value by 49.7. To go the other way, multiply ares by 0.0201207 to get mẫu (central Vietnam).