Legal Metrology Units
1km²= 100ha= 247.1acre= 0.386sqmi
1m²= 10.764sq ft² 1are= 100m²
1ha=15mu=1hm2=10000m²= 2.471acre=0.01km²
1sqmi= 2.590km²
1acre= 0.4047ha= 4.047×10km²= 4047km²
1sq ft²= 0.093m² 1sq in²= 6.452cm²
1sq yd²= 0.8361m²
1mu=2000/3m²≈666.666m²
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