Convert Microcuries to Millicuries
Convert Microcuries (µCi) to Millicuries (mCi) instantly and accurately.
Conversion Formula
mCi = µCi × 0.001
About Microcuries
The microcurie (µCi) equals 3.7 × 10⁴ Bq = 37 kBq. Sealed sources for educational and bench-top laboratory use are licensed up to 1-10 µCi under US NRC 10 CFR 30.18; small-animal PET imaging doses of ¹⁸F in preclinical research are expressed in µCi. 1 µCi = 3.7 × 10⁴ 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
| Microcuries (µCi) | Millicuries (mCi) |
|---|---|
| 1 µCi | 0.001 mCi |
| 2 µCi | 0.002 mCi |
| 5 µCi | 0.005 mCi |
| 10 µCi | 0.01 mCi |
| 25 µCi | 0.025 mCi |
| 50 µCi | 0.05 mCi |
| 100 µCi | 0.1 mCi |