Convert Becquerels to Gigabecquerels (Bq to GBq)
1 becquerel (Bq) = 1 × 10⁻⁹ gigabecquerels (GBq). 1 GBq = 1000000000 Bq. Example: 15 Bq = 15 × 1 × 10⁻⁹ = 1.5 × 10⁻⁸ GBq.
Also searched as becquerels to GBq, becquerels in GBq, becquerels into gigabecquerels, Bq to GBq, Bq in gigabecquerels, Bq into gigabecquerel, becquerel to gigabecquerel, Bq to gigabecquerels converter and how many gigabecquerels in a becquerel.
1 Bq = 1e-9 GBq
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk becquerel to gigabecquerel converter to paste a column from Excel.
How to Convert Becquerel to Gigabecquerel
- 1 Bq = 1 × 10⁻⁹ GBq
- 1 GBq = 1000000000 Bq
- Example: convert 15 Bq to GBq: 15 Bq = 15 × 1 × 10⁻⁹ GBq = 1.5 × 10⁻⁸ GBq
Formula
GBq = Bq ÷ 1000000000
Derivation from SI units:
- 1 Bq = 1 decay per second (s⁻¹).
- 1 GBq = 10⁹ Bq.
Both units are defined exactly, so the factor is exact. Becquerel definition: becquerel; Gigabecquerel definition: gigabecquerel.
Worked examples
- A reading of 100 Bq converts to 1 × 10⁻⁷ GBq.
100 Bq × 1 × 10⁻⁹ = 1 × 10⁻⁷ GBq - A value of 3700 Bq is 0.0000037 GBq.
3700 Bq × 1 × 10⁻⁹ = 0.0000037 GBq
Becquerel to Gigabecquerel conversion table
| Becquerels (Bq) | Gigabecquerels (GBq) |
|---|---|
| 1 Bq | 1 × 10⁻⁹ GBq |
| 10 Bq | 1 × 10⁻⁸ GBq |
| 37 Bq | 3.7 × 10⁻⁸ GBq |
| 100 Bq | 1 × 10⁻⁷ GBq |
| 370 Bq | 3.7 × 10⁻⁷ GBq |
| 1000 Bq | 0.000001 GBq |
| 3700 Bq | 0.0000037 GBq |
| 10000 Bq | 0.00001 GBq |
| 37000 Bq | 0.000037 GBq |
| 1000000 Bq | 0.001 GBq |
Where it's used
Becquerels are used for food and environmental radioactivity limits, while gigabecquerels appear in radioiodine therapy (1–7 GBq). Both measure activity of a radioactive source, so the conversion is a fixed factor.
Becquerel to other radioactivity units
| Conversion | 1 Bq equals |
|---|---|
| becquerel to gigabecquerel | 1 × 10⁻⁹ GBq |
| becquerel to curie | 2.702702703 × 10⁻¹¹ Ci |
| becquerel to megabecquerel | 0.000001 MBq |
| becquerel to millicurie | 2.702702703 × 10⁻⁸ mCi |
| becquerel to picocurie | 27.02702703 pCi |
| becquerel to kilobecquerel | 0.001 kBq |
| becquerel to microcurie | 0.00002702702703 µCi |
| becquerel to disintegration per minute | 60 dpm |
Show 3 more units
| becquerel to terabecquerel | 1 × 10⁻¹² TBq |
|---|---|
| becquerel to nanocurie | 0.02702702703 nCi |
| becquerel to rutherford | 0.000001 Rd |
Frequently asked questions
How many gigabecquerels are in 1 becquerel?
1 Bq = 1 × 10⁻⁹ GBq.
How do I convert becquerels to gigabecquerels?
Multiply the value in Bq by 1 × 10⁻⁹, or divide it by 1000000000. For example, 15 Bq × 1 × 10⁻⁹ = 1.5 × 10⁻⁸ GBq.
Is the Bq to GBq conversion exact?
Yes. Both units are defined exactly, and 1 Bq is exactly 1 × 10⁻⁹ GBq.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Becquerels to Gigabecquerels (Bq to GBq). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/becquerels-to-gigabecquerels/
IEEE
Scientific Converters, "Convert Becquerels to Gigabecquerels (Bq to GBq)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/becquerels-to-gigabecquerels/