Convert Picocuries to Megacuries
Convert Picocuries (pCi) to Megacuries (MCi) instantly and accurately.
Conversion Formula
MCi = pCi × 1.000000000e-18
About Picocuries
The picocurie (pCi) equals 3.7 × 10⁻² Bq = 37 mBq. The US EPA uses pCi/L as the standard unit for indoor radon (action level: 4 pCi/L) and drinking water radon; NRC licence exemption thresholds and natural uranium activity in groundwater are expressed in pCi/L. 1 pCi = 3.7 × 10⁻² Bq.
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.
Quick Reference Table
| Picocuries (pCi) | Megacuries (MCi) |
|---|---|
| 1 pCi | 1 × 10-18 MCi |
| 2 pCi | 2 × 10-18 MCi |
| 5 pCi | 5 × 10-18 MCi |
| 10 pCi | 1 × 10-17 MCi |
| 25 pCi | 2.5 × 10-17 MCi |
| 50 pCi | 5 × 10-17 MCi |
| 100 pCi | 1 × 10-16 MCi |