Magnetic-Field Unit Converter

Enter a value and select a starting unit to see all available conversion results.

Magnetic-Field Units and Descriptions

Below are descriptions and historical context for each Magnetic-Field unit available in this converter.

Nanotesla (nT)

Nanotesla, used for measuring Earth's magnetic field (~25,000-65,000 nT) and geomagnetic surveys.

Microtesla (μT)

Microtesla, used in biomagnetism (brain: ~0.1 μT, heart: ~50 μT) and weak magnetic field measurements.

Millitesla (mT)

Millitesla, common in medical MRI (1.5T = 1500 mT) and moderate magnetic field applications.

Tesla (T)

Tesla, named after Nikola Tesla (1856-1943). Strong permanent magnets: 0.1-1.4 T, MRI machines: 1.5-7 T.

MilliGauss (mG)

Milligauss, 1/1000th of a Gauss.

Gauss (G)

Gauss, named after Carl Friedrich Gauss (1777-1855). Traditional unit still used in industry (1 T = 10,000 G).

Kilogauss (kG)

Kilogauss, used for permanent magnet specifications. Neodymium magnets typically rated 10-14 kG.

Oersted (Oe)

Oersted, named after Hans Christian Ørsted (1777-1851). Measures magnetic field strength in CGS system.

Weber/square meter (Wb/m²)

A Weber per square meter is the SI unit for magnetic flux density, which is also known as one Tesla. It represents the strength of a magnetic field, or how much magnetic flux passes through a unit of area.

Base Unit Conversion Factors

The table below shows the conversion factors from each unit to the base unit, which is the Tesla (T).

  • 1 Tesla (T) = 1000000000 Nanotesla (nT)
  • 1 Tesla (T) = 1000000 Microtesla (μT)
  • 1 Tesla (T) = 1000 Millitesla (mT)
  • 1 Tesla (T) = 1 Tesla (T)
  • 1 Tesla (T) = 10000000 MilliGauss (mG)
  • 1 Tesla (T) = 10000 Gauss (G)
  • 1 Tesla (T) = 10 Kilogauss (kG)
  • 1 Tesla (T) = 10000 Oersted (Oe)
  • 1 Tesla (T) = 1 Weber/square meter (Wb/m²)