Convert Megaroentgens to Femtocoulombs per kilogram
Convert Megaroentgens (MR) to Femtocoulombs per kilogram (fC/kg) instantly and accurately.
Conversion Formula
fC/kg = MR × 2.580000000e+17
About Megaroentgens
The megaroentgen (MR) equals 258 C/kg. Used only in extreme radiation environments - nuclear detonation effects calculations, prompt gamma pulse environments, and legacy radiation hardness assurance for military electronics specify total ionising exposure in MR(air); calibrated flash X-ray simulators output pulse exposures in MR. 1 MR = 258 C/kg = 10⁶ R.
About Femtocoulombs per kilogram
The femtocoulomb per kilogram (fC/kg) equals 10⁻¹⁵ C/kg. Used in computational dosimetry to characterise the ionisation yield from single low-energy photon interactions in nanogram air volumes; ultra-sensitive free-air ionisation chamber simulations in microdosimetry research report air-ionisation at the fC/kg level. 1 fC/kg = 10⁻¹⁵ C/kg = 10⁻³ pC/kg.
Quick Reference Table
| Megaroentgens (MR) | Femtocoulombs per kilogram (fC/kg) |
|---|---|
| 1 MR | 2.58 × 1017 fC/kg |
| 2 MR | 5.16 × 1017 fC/kg |
| 5 MR | 1.29 × 1018 fC/kg |
| 10 MR | 2.58 × 1018 fC/kg |
| 25 MR | 6.45 × 1018 fC/kg |
| 50 MR | 1.29 × 1019 fC/kg |
| 100 MR | 2.58 × 1019 fC/kg |