How many ㎡ is 30 a?
30 a = 3,000 ㎡
It is 3,000 ㎡, so saying 3,000 ㎡ is fine — rounding is within 0.5%.
And how many a is 30 ㎡?
30 ㎡ = 0.3 a
Formula: ㎡ = a × 100
a to ㎡ around this value
12 a1,200㎡
14 a1,400㎡
16 a1,600㎡
18 a1,800㎡
20 a2,000㎡
22 a2,200㎡
24 a2,400㎡
26 a2,600㎡
28 a2,800㎡
30 a3,000㎡
32 a3,200㎡
34 a3,400㎡
36 a3,600㎡
38 a3,800㎡
40 a4,000㎡
42 a4,200㎡
44 a4,400㎡
46 a4,600㎡
48 a4,800㎡
50 a5,000㎡