How many ㎡ is 5 a?
5 a = 500 ㎡
It is 500 ㎡, so saying 500 ㎡ is fine — rounding is within 0.5%.
And how many a is 5 ㎡?
5 ㎡ = 0.1 a
Formula: ㎡ = a × 100
a to ㎡ around this value
0.5 a50㎡
1 a100㎡
1.5 a150㎡
2 a200㎡
2.5 a250㎡
3 a300㎡
3.5 a350㎡
4 a400㎡
4.5 a450㎡
5 a500㎡
5.5 a550㎡
6 a600㎡
6.5 a650㎡
7 a700㎡
7.5 a750㎡
8 a800㎡
8.5 a850㎡
9 a900㎡
9.5 a950㎡
10 a1,000㎡