Convert Femtosieverts to Millisieverts

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

Femtosieverts (fSv)
Millisieverts (mSv)

Conversion Formula

mSv = fSv × 1.000000000e-12

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 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.

Quick Reference Table

Femtosieverts (fSv)Millisieverts (mSv)
1 fSv1 × 10-12 mSv
2 fSv2 × 10-12 mSv
5 fSv5 × 10-12 mSv
10 fSv1 × 10-11 mSv
25 fSv2.5 × 10-11 mSv
50 fSv5 × 10-11 mSv
100 fSv1 × 10-10 mSv

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