For junior high school physics unit conversion, such as 100cm = 1m. Length and area, speed, etc I'm asking about unit conversion. What do you give me physical formula for? Unit conversion! Do you understand

For junior high school physics unit conversion, such as 100cm = 1m. Length and area, speed, etc I'm asking about unit conversion. What do you give me physical formula for? Unit conversion! Do you understand

1km=1000m
1dm=0.1m
1cm=0.01m
1mm=0.001m
1um=0.000001m
1nm=0.000000001m
1h=3600s
1min=60s
1ms=0.001s
1us=0.000001s
1ns=0.000000001s
1ml=1cm2
1L=1dm2
1m|s=3.6km|s
1khz=1000hz
1kwh=3.6*1000000J
1kw=1000w
1mA=0.001A
1uA=0.000001A
1kv=1000v
1mv=0.001v
1kΩ=1000kΩ
1mΩ=1000000Ω