Convert Millisieverts to Femtosieverts

Convert Millisieverts (mSv) to Femtosieverts (fSv) instantly and accurately.

Millisieverts (mSv)
Femtosieverts (fSv)

Conversion Formula

fSv = mSv × 1000000000000

About Millisieverts

The millisievert (mSv) equals 10⁻³ Sv and is the primary international radiation protection unit. ICRP 103 occupational limit 20 mSv/year averaged over 5 years; worldwide average background ~2.4 mSv/year; abdominal CT ~10 mSv; EU medical exposure directive and IAEA dose limits are quoted in mSv. 1 mSv = 10⁻³ Sv = 100 mrem.

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.

Quick Reference Table

Millisieverts (mSv)Femtosieverts (fSv)
1 mSv1 × 1012 fSv
2 mSv2 × 1012 fSv
5 mSv5 × 1012 fSv
10 mSv1 × 1013 fSv
25 mSv2.5 × 1013 fSv
50 mSv5 × 1013 fSv
100 mSv1 × 1014 fSv

→ Full Equivalent Dose Converter