||
|| 10<sup>−7</sup> kg⋅m·s<sup>−2</sup>·A<sup>−3</sup>
|style="text-align:left;"|Defined as 1
||
|| 1
! magnetic constant
|| ''µ<sub>0</sub>''
|style="text-align:left;"|Defined as ''µ<sub>0</sub>''
||
|| 4π·10<sup>−7</sup> kg·m·s<sup>−2</sup>·A<sup>−3</sup>
|style="text-align:left;"|Defined as 1
||
|| 1
|| ''µ<sub>0</sub>''<sup>−1</sup>
|}