Convert Millisieverts to Nanosieverts

Convert Millisieverts (mSv) to Nanosieverts (nSv) instantly and accurately.

Millisieverts (mSv)
Nanosieverts (nSv)

Conversion Formula

nSv = mSv × 1000000

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 Nanosieverts

The nanosievert (nSv) equals 10⁻⁹ Sv. Ambient environmental gamma dose rates at sea level are ~30-50 nSv/h; portable radiation survey meters and environmental monitoring networks report ambient dose equivalent rates in nSv/h; airborne gamma spectrometry surveys record deposition rates in nSv/h. 1 nSv = 10⁻⁹ Sv = 10⁻³ µSv.

Quick Reference Table

Millisieverts (mSv)Nanosieverts (nSv)
1 mSv1000000 nSv
2 mSv2000000 nSv
5 mSv5000000 nSv
10 mSv10000000 nSv
25 mSv25000000 nSv
50 mSv50000000 nSv
100 mSv100000000 nSv

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