Maxwell (Mx)
The maxwell is the CGS unit of magnetic flux, one gauss over one square centimetre, exactly 10⁻⁸ weber. Older texts call it a "line" of flux.
Symbol: Mx
Quantity: magnetic flux
SI relation: 1 Mx = 1 × 10⁻⁸ Wb (exact)
Derivation: 1 Mx = 1 G·cm² = 10⁻⁸ Wb (exact)
Exact: yes, by definition
History
Named after James Clerk Maxwell. 10⁸ Mx = 1 Wb, which is why older transformer formulas contain a factor of 10⁸.
Typical uses
- Older transformer and magnet design formulas
- Fluxmeters calibrated in maxwell-turns
Convert maxwells to other units
| Conversion | 1 Mx equals | Reverse |
|---|---|---|
| maxwell to weber | 1 × 10⁻⁸ Wb | weber to maxwell |
| maxwell to milliweber | 0.00001 mWb | milliweber to maxwell |
| maxwell to microweber | 0.01 µWb | microweber to maxwell |
Open the Magnetic Flux Converter to convert any value between all units.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "maxwell".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Maxwell (Mx). Retrieved October 25, 2026, from https://scientificconverters.com/units/maxwell/
IEEE
Scientific Converters, "Maxwell (Mx)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/units/maxwell/