TOOLS
EMF unit converter.
Different meters and different guidelines report in different units. Enter a reading in any unit below and see it converted to the others.
AC magnetic field
- mG
- -
- µT
- -
- nT
- -
- G
- -
- T
- -
AC electric field
- V/m
- -
- mV/m
- -
- kV/m
- -
Radiofrequency power density
- µW/cm²
- -
- µW/m²
- -
- mW/m²
- -
- W/m²
- -
- mW/cm²
- -
- V/m
- -
- A/m
- -
V/m and A/m use the free-space plane-wave approximation (S = E² / 377Ω = E × H, with 377Ω the impedance of free space) to convert to and from power density. This holds far enough from a source that the wave has become a simple plane wave - it does not hold in the near field, close to the source.