Convert magnetic flux density units including Tesla (T), Gauss (G), Millitesla (mT), Microtesla (µT), Milligauss (mG), and Gamma.
10 Gamma
Magnetic flux density (also called magnetic field strength or B-field) measures the density and intensity of magnetic field lines passing perpendicular through a given surface area. In the SI system, magnetic flux density is measured in Tesla (T), named after Nikola Tesla. In the CGS system, it is measured in Gauss (G), named after Carl Friedrich Gauss.
Human brain neural impulses: ~10⁻¹² T (1 pT); Earth's geomagnetic field at surface: ~30 to 60 µT (0.3–0.6 G); Refrigerator decorative magnet: ~50 to 100 G (5–10 mT); High-grade N52 Neodymium rare-earth magnet: ~1.4 Tesla (14,000 G); Clinical hospital MRI scanner: 1.5 T to 3.0 T; High-field research MRI: 7 T to 11.7 T; Strongest continuous laboratory magnetic field: ~45 Tesla; Surface of a neutron star (pulsar): ~10⁸ Tesla; Magnetar: ~10¹¹ Tesla.
1 Tesla (T) = 10,000 Gauss (G) = 1,000 Millitesla (mT) = 1,000,000 Microtesla (µT) = 10,000,000 Milligauss (mG) = 1,000,000,000 Nanotesla (nT) or Gamma (γ).
There are exactly 10,000 Gauss in 1 Tesla. To convert Tesla to Gauss, multiply by 10,000. To convert Gauss to Tesla, divide by 10,000 (e.g., 3,000 Gauss = 0.3 Tesla).
Earth's geomagnetic field strength ranges from approximately 25 to 65 microteslas (µT), which equals 0.25 to 0.65 Gauss (250 to 650 milligauss).
1 microtesla (µT) equals exactly 10 milligauss (mG). To convert µT to mG, multiply by 10. For example, a 2.5 µT electromagnetic field reading = 25 mG.
Clinical MRI scanners typically use superconducting magnets rated at 1.5 Tesla (15,000 Gauss) or 3.0 Tesla (30,000 Gauss), which is roughly 30,000 to 60,000 times stronger than the Earth's natural magnetic field.
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