Convert Millicuries to Gigabecquerels
Convert Millicuries (mCi) to Gigabecquerels (GBq) instantly and accurately.
Conversion Formula
GBq = mCi × 0.037
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 Gigabecquerels
The gigabecquerel (GBq) equals 10⁹ Bq. Therapeutic radiopharmaceuticals are dosed in GBq: ¹⁷⁷Lu-PSMA prostate cancer therapy uses 7.4 GBq per cycle; ¹³¹I thyroid cancer ablation uses 3.7-7.4 GBq; ²²³Ra-dichloride (Xofigo) bone metastasis therapy ~3-5 GBq per injection. 1 GBq = 10⁹ Bq.
Quick Reference Table
| Millicuries (mCi) | Gigabecquerels (GBq) |
|---|---|
| 1 mCi | 0.037 GBq |
| 2 mCi | 0.074 GBq |
| 5 mCi | 0.185 GBq |
| 10 mCi | 0.37 GBq |
| 25 mCi | 0.925 GBq |
| 50 mCi | 1.85 GBq |
| 100 mCi | 3.7 GBq |