Convert Millicuries to Gigacuries
Convert Millicuries (mCi) to Gigacuries (GCi) instantly and accurately.
Conversion Formula
GCi = mCi × 1.000000000e-12
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.
About Gigacuries
The gigacurie (GCi) equals 3.7 × 10¹⁹ Bq. The total fission product inventory of a 1 GWe nuclear power reactor at equilibrium is ~0.5 GCi; global spent fuel inventories worldwide exceed 10 GCi; total reactor-produced tritium in the world's oceans is estimated at ~1 GCi. 1 GCi = 3.7 × 10¹⁹ Bq.
Quick Reference Table
| Millicuries (mCi) | Gigacuries (GCi) |
|---|---|
| 1 mCi | 1 × 10-12 GCi |
| 2 mCi | 2 × 10-12 GCi |
| 5 mCi | 5 × 10-12 GCi |
| 10 mCi | 1 × 10-11 GCi |
| 25 mCi | 2.5 × 10-11 GCi |
| 50 mCi | 5 × 10-11 GCi |
| 100 mCi | 1 × 10-10 GCi |