Gigabecquerel (GBq)
One billion decays per second.
What is a gigabecquerel?
- Symbol
- GBq
- Quantity
- Radioactivity
- Unit system
- SI
- Definition
- One billion decays per second.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
Used for radionuclide generators and therapy doses in nuclear medicine, and for medium-sized sealed sources.
Gigabecquerel in other radioactivity units
- 1 GBq = 1000000000 BqBecquerel
- 1 GBq = 1000000 kBqKilobecquerel
- 1 GBq = 1000 MBqMegabecquerel
- 1 GBq = 0.001 TBqTerabecquerel
- 1 GBq ≈ 0.02702702703 CiCurie
- 1 GBq ≈ 27.02702703 mCiMillicurie
- 1 GBq ≈ 27027.02703 µCiMicrocurie
- 1 GBq ≈ 27027027030 pCiPicocurie
- 1 GBq = 1000 RdRutherford
- 1 GBq = 60000000000 dpmDisintegration per minute
Gigabecquerel quick reference
| Gigabecquerel | Curie | Becquerel | Kilobecquerel |
|---|---|---|---|
| 1 GBq | ≈ 0.02702702703 Ci | = 1000000000 Bq | = 1000000 kBq |
| 10 GBq | ≈ 0.2702702703 Ci | = 10000000000 Bq | = 10000000 kBq |
| 100 GBq | ≈ 2.702702703 Ci | = 100000000000 Bq | = 100000000 kBq |
| 1000 GBq | ≈ 27.02702703 Ci | = 1000000000000 Bq | = 1000000000 kBq |
Where the gigabecquerel fits
The next smaller radioactivity unit is the millicurie (mCi). 1 GBq ≈ 27.02702703 mCi, and 1 mCi = 0.037 GBq.
The next larger radioactivity unit is the curie (Ci). 1 GBq ≈ 0.02702702703 Ci, and 1 Ci = 37 GBq.
Frequently asked questions
- How many curies are in one gigabecquerel?
- One gigabecquerel ≈ 0.02702702703 Ci (curies).
- How many becquerels are in one gigabecquerel?
- One gigabecquerel = 1000000000 Bq (becquerels).
- How many kilobecquerels are in one gigabecquerel?
- One gigabecquerel = 1000000 kBq (kilobecquerels).