Magnetic Flux Density Converter

Convert between tesla (T), gauss (G), maxwell/square centimeter, and other magnetic flux density units with scientific precision.

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Magnetic Flux Density Units Explained

Tesla (T)

The SI unit of magnetic flux density, defined as the magnetic flux per unit area. 1 T = 1 weber/square meter = 10,000 gauss. Named after physicist Nikola Tesla.

Common uses: MRI machines, electromagnet design, transformer specifications, magnetic sensor calibration, and particle accelerator design.

Gauss (G)

A CGS (centimeter-gram-second) unit of magnetic flux density. 1 G = 10⁻⁴ T = 0.0001 tesla. Named after mathematician and physicist Carl Friedrich Gauss.

Historical context: Still widely used in magnetism research, materials science, and geophysics. The Earth's magnetic field is approximately 0.3-0.6 gauss.

Weber per Square Meter (Wb/m²)

The fundamental SI definition of magnetic flux density. 1 Wb/m² = 1 Tesla. Represents the amount of magnetic flux per unit area perpendicular to the magnetic field.

Application: Direct calculation from magnetic flux and cross-sectional area, fundamental definition in electromagnetic theory.

Maxwell per Square Centimeter

A CGS unit of magnetic flux density. 1 Mx/cm² = 10⁻⁴ T = 1 gauss. Represents magnetic flux per unit area in CGS units.

Application: Magnetic material testing, hysteresis measurements, and magnetization curve characterization.

Gamma (γ)

A unit of magnetic flux density equal to 1 γ = 10⁻⁹ T = 1 nanotesla. Extremely small unit used for measuring weak magnetic fields.

Application: Geomagnetic surveys, magnetic anomaly detection, biomagnetics research, and magnetoencephalography (MEG) measurements.

Weber per Square Centimeter (Wb/cm²)

A mixed SI/CGS unit. 1 Wb/cm² = 10⁴ T = 100 million gauss. Represents magnetic flux per small unit area.

Application: Magnetic core saturation measurements and high-field magnet specifications.

Line per Square Centimeter

A CGS unit where 1 line/cm² = 1 maxwell/cm² = 1 gauss. Historical unit from CGS systems.

Application: Found in older literature and vintage equipment specifications, largely replaced by gauss and tesla.

Magnetic Flux Density Applications & Context

  • Earth's magnetic field: Approximately 25-65 microtesla (250-650 milligauss)
  • Permanent magnets: Typically 0.1-0.5 tesla at the surface
  • MRI machines: Operate at 1.5, 3, or 7 tesla for clinical use
  • Electromagnets: Can produce fields up to several tesla depending on design
  • Superconducting magnets: Can achieve fields exceeding 20 tesla
  • Ferromagnetic saturation: Most iron-based materials saturate around 2 tesla
  • Hall effect sensors: Can detect fields as small as 1 milligauss to several tesla