Convert Megacuries to Nanocuries

Convert Megacuries (MCi) to Nanocuries (nCi) instantly and accurately.

Megacuries (MCi)
Nanocuries (nCi)

Conversion Formula

nCi = MCi × 1000000000000000

About Megacuries

The megacurie (MCi) equals 3.7 × 10¹⁶ Bq. Total radioactive inventory of a large nuclear power reactor core at shutdown is ~2000-10000 MCi; US atmospheric nuclear weapons tests released ~12000 MCi of ¹³¹I globally; high-level nuclear waste repositories are characterised in MCi. 1 MCi = 3.7 × 10¹⁶ Bq.

About Nanocuries

The nanocurie (nCi) equals 37 Bq. Sealed radioactive sources in laboratory instruments (electron-capture detectors in GC, ionisation chambers) are licensed in nCi; nCi is the working unit on US NRC licence forms and instrument calibration certificates for low-level sources. 1 nCi = 37 Bq = 3.7 × 10⁻⁸ Ci.

Quick Reference Table

Megacuries (MCi)Nanocuries (nCi)
1 MCi1 × 1015 nCi
2 MCi2 × 1015 nCi
5 MCi5 × 1015 nCi
10 MCi1 × 1016 nCi
25 MCi2.5 × 1016 nCi
50 MCi5 × 1016 nCi
100 MCi1 × 1017 nCi

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