Convert Femtosieverts to Megasieverts

Convert Femtosieverts (fSv) to Megasieverts (MSv) instantly and accurately.

Femtosieverts (fSv)
Megasieverts (MSv)

Conversion Formula

MSv = fSv × 1.000000000e-21

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 Megasieverts

The megasievert (MSv) equals 10⁶ Sv. Entirely theoretical for biological contexts - severe radiation damage occurs well below 1 MSv. Appears in materials science modelling of extreme radiation environments, theoretical nuclear detonation effects at point of burst, and advanced reactor pressure vessel damage accumulation calculations. 1 MSv = 10⁶ Sv = 10⁸ rem.

Quick Reference Table

Femtosieverts (fSv)Megasieverts (MSv)
1 fSv1 × 10-21 MSv
2 fSv2 × 10-21 MSv
5 fSv5 × 10-21 MSv
10 fSv1 × 10-20 MSv
25 fSv2.5 × 10-20 MSv
50 fSv5 × 10-20 MSv
100 fSv1 × 10-19 MSv

→ Full Equivalent Dose Converter