Magnetic Flux Density Converter

Convert magnetic flux density between tesla, millitesla, microtesla, gauss, and nanotesla. Also called the B-field or magnetic induction.

Common Magnetic Flux Density Conversions

FromTo
1 T10,000 G (gauss)
1 mT10 G
1 µT0.01 G
Earth's field~50 µT = 0.5 G
MRI machine1.5–3 T
Fridge magnet~10 mT

Magnetic Flux Density Unit Definitions

Tesla (T)
SI unit of magnetic flux density = Wb/m².
Gauss (G)
CGS unit = 10⁻⁴ T.
Nanotesla (nT)
10⁻⁹ T. Used in geomagnetic surveys.

Frequently Asked Questions

What is Earth's magnetic field strength?

Earth's magnetic field is approximately 25–65 microtesla (µT) depending on location, which equals 0.25–0.65 gauss.