conversion_between_cgs_or_gaussian_to_si_magnetic_units
Table of Contents
Conversion between CGS or Gaussian to SI magnetic units
 This section is an interactive calculator. |
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| → Multiply CGS quantity by Factor to obtain SI quantity1)2), CGS·F = SI | ||||
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| ← Divide SI quantity by Factor to obtain CGS quantity, , CGS = SI / F | ||||
| CGS quantity | Units | Factor F | SI quantity | Units |
| flux density $B$ | (G) | $10^{-4}$ | flux density $B$ | (T) |
| magnetic field strength $H$ | (Oe) | ${10^3}/{4π}$ | magnetic field strength $H$ | (A/m) |
| volume susceptibility $χ$ or $κ$ | (unitless), (emu/cm3) a | $4π$ | volume susceptibility $χ$ or $κ$ | (unitless) |
| mass susceptibility $χ_ρ$ or $κ_ρ$ | (cm3/g), (emu/g) a | $4π·10^{-3}$ | mass susceptibility $χ_ρ$ or $κ_ρ$ | (m3/kg) |
| molar susceptibility $χ_{mol}$ or $κ_{mol}$ | (cm3/mol), (emu/mol) a | $4π·10^{-6}$ | molar susceptibility $χ_{mol}$ or $κ_{mol}$ | (m3/mol) |
| magnetisation $M$ or volume magnetisation c | (Oe) or (emu/cm3) a | ${10^3}$ | magnetisation $M$ | (A/m) |
| magnetisation $M$ or intensity of magnetisation $I$ | (G) or (emu/cm3) | $4π·10^{-4}$ | magnetic polarisation $J$ | (T) |
| magnetisation $4π·M$ volume magnetisation $4π·M$ | (Oe) or (G) | ${10^3}/4π$ | magnetisation $M$ | (A/m) |
| intrinsic induction $B_i$ or $4π·M$ | (G) | $10^{-4}$ | magnetic polarisation $J$ | (T) |
| magnetisation $M$ (per unit) | ($μ_B/$atom), ($μ_B/$unit) | $1$ b | magnetisation $M$ (per unit) | ($μ_B/$atom), ($μ_B/$unit) |
| magnetic dipole moment $m$ or $μ$ | (erg/G) or (emu) | $10^{-3}$ | magnetic dipole moment $m$ or $μ$ | (J/T) ≡ (A·m2) |
| demagnetising factor $N$ | (unitless) | $1/4π$ | demagnetising factor $N$ | (unitless) |
| permeability $μ$ | (unitless) | $4π·10^{-7}$ | absolute permeability $μ$ | (H/m) |
| relative permeability $μ_r$ | not defined | no factor | relative permeability $μ_r$ | (unitless) |
| magnetic flux $Φ$ | (Mx) | $10^{-8}$ | magnetic flux $Φ$ | (Wb) |
| magnetomotive force $F$ | (Gb) | $10/4π$ | magnetomotive force $MMF$ | (A) or (A-turn) |
| volume energy density $W$ or $E$ | (erg/cm3) | $10^{-1}$ | volume energy density $W$ or $E$ | (J/m3) |
| (mass) magnetisation $M$ or $σ$ | (emu/g) | $1$ | magnetic moment per mass | (A·m2/kg) ≡ (J/(T·kg)) |
- a In this notation 'emu' is used not as a proper physical unit, but rather to indicate the type of units. In some cases susceptibility can be recalculated if 'emu' is replaced by cm3.
- b $μ_B$ denotes the Bohr magneton, which itself has a different unit in CGS and SI systems, but the “per unit” value scales in the same way in both systems, hence the conversion factor is unity.
- c Magnetic dipole moment per unit volume.
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Calculator of magnetic units
This page contains a collection of calculators, for converting values between various magnetic units.
 See also other: Calculators |
gauss to tesla
| $B$ (T) = $10^{-4}· B$ (G) | |
tesla to gauss
| $B$ (G) = $10^{4}· B$ (T) | |
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oersted to A/m
| $H$ (Oe) = $\frac{1000}{4·π}· H$ (A/m) | |
A/m to oersted
| $H$ (A/m) = $\frac{4·π}{1000}· H$ (Oe) | |
MGOe to kJ/m³
| $B·H$ (GOe) = $\frac{1000}{4·π·10000}· H$ (J/m³) | |
conversion_between_cgs_or_gaussian_to_si_magnetic_units.txt · Last modified: 2023/09/29 21:19 by stan_zurek