Convert Picocuries to Millicuries
Convert Picocuries (pCi) to Millicuries (mCi) instantly and accurately.
Conversion Formula
mCi = pCi × 1.000000000e-9
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 Millicuries
The millicurie (mCi) equals 3.7 × 10⁷ Bq = 37 MBq. The primary clinical nuclear medicine unit in the US: ¹⁸F-FDG PET doses are 8-15 mCi; ⁹⁹mTc cardiac stress tests use 25-35 mCi; ¹³¹I hyperthyroidism therapy uses 5-30 mCi. US pharmacopeia and NRC regulations specify doses in mCi. 1 mCi = 3.7 × 10⁷ Bq.
Quick Reference Table
| Picocuries (pCi) | Millicuries (mCi) |
|---|---|
| 1 pCi | 1 × 10-9 mCi |
| 2 pCi | 2 × 10-9 mCi |
| 5 pCi | 5 × 10-9 mCi |
| 10 pCi | 1 × 10-8 mCi |
| 25 pCi | 2.5 × 10-8 mCi |
| 50 pCi | 5 × 10-8 mCi |
| 100 pCi | 1 × 10-7 mCi |