Convert Femtosieverts to Rems
Convert Femtosieverts (fSv) to Rems (rem) instantly and accurately.
Conversion Formula
rem = fSv × 1.000000000e-13
About Femtosieverts
The femtosievert (fSv) equals 10⁻¹⁵ Sv. Used in computational nanodosimetry and Monte Carlo particle-transport simulations to characterise the equivalent dose from a single ion traversal through a DNA segment or cell organelle. Ultra-sensitive detector calibration in deep underground laboratories approaches the fSv level. 1 fSv = 10⁻¹⁵ Sv = 10⁻³ pSv.
About Rems
The rem (roentgen equivalent man) equals exactly 0.01 Sv = 1 cSv. The pre-SI unit of equivalent dose, still dominant in US regulation: NRC occupational whole-body limit 5 rem/year; 10 CFR Part 20 exposure limits cited in rem; US military personnel dose records maintained in rem. 1 rem = 0.01 Sv = 1 cSv.
Quick Reference Table
| Femtosieverts (fSv) | Rems (rem) |
|---|---|
| 1 fSv | 1 × 10-13 rem |
| 2 fSv | 2 × 10-13 rem |
| 5 fSv | 5 × 10-13 rem |
| 10 fSv | 1 × 10-12 rem |
| 25 fSv | 2.5 × 10-12 rem |
| 50 fSv | 5 × 10-12 rem |
| 100 fSv | 1 × 10-11 rem |