Convert Gammas to Femtoteslas
Convert Gammas (γ) to Femtoteslas (fT) instantly and accurately.
Conversion Formula
fT = γ × 1000000
About Gammas
The gamma (γ) equals exactly 1 nT = 10⁻⁹ T. A legacy CGS-adjacent unit adopted in geophysics and aeromagnetic surveying before SI. Total-field aeromagnetic surveys measure local anomalies of a few γ to thousands of γ over mineral deposits. 1 γ = 1 nT = 10⁻⁹ T.
About Femtoteslas
The femtotesla (fT) equals 10⁻¹⁵ T. The standard field scale for biomagnetic measurements: neural signals in magnetoencephalography (MEG) produce cortical fields of 10-1000 fT, while cardiac magnetic fields (magnetocardiography, MCG) are around 10-100 pT. SQUID sensors routinely measure in the fT range. 1 fT = 10⁻¹⁵ T.
Quick Reference Table
| Gammas (γ) | Femtoteslas (fT) |
|---|---|
| 1 γ | 1000000 fT |
| 2 γ | 2000000 fT |
| 5 γ | 5000000 fT |
| 10 γ | 10000000 fT |
| 25 γ | 25000000 fT |
| 50 γ | 50000000 fT |
| 100 γ | 100000000 fT |