Se (Japan) to Square Kilometers: the quick answer
1 se = 9.91736 × 10⁻⁵ km²
1 se (Japan) equals 9.91736 × 10⁻⁵ square kilometers
To convert se (Japan) to square kilometers, multiply the value by 9.91736 × 10⁻⁵. To go the other way, multiply square kilometers by 10,083.3 to get se (Japan).