Mẫu (Northern Vietnam) to Square Yards: the quick answer
1 mẫu-b = 4,305.56 yd²
1 mẫu (northern Vietnam) equals 4,305.56 square yards
To convert mẫu (northern Vietnam) to square yards, multiply the value by 4,305.56. To go the other way, multiply square yards by 0.000232258 to get mẫu (northern Vietnam).