Radioactivity
kBqtoGBq
Convert kilobecquerels (kBq) to gigabecquerels (GBq).
Factor1 kBq = 1e-6 GBq
Converter
kBq
Accepts numbers or expressions, e.g. 150 + 14.7
Result
GBq
Rendered to 6 significant figures.
Formula
Formula
GBq = kBq × 1e-6
Multiply any value in kilobecquerels by 1e-6 to obtain the value in gigabecquerels.
Worked example
Convert 1.00000e+6 kBq to GBq.
- 01Start with 1.00000e+6 kBq.
- 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 GBq.
Result1.00000e+6 kBq = 1 GBq
Conversion table
| kBq | GBq |
|---|---|
| 1 | 1e-6 |
| 2 | 2e-6 |
| 5 | 5e-6 |
| 10 | 1e-5 |
| 20 | 2e-5 |
| 50 | 5e-5 |
| 100 | 0.0001 |
| 200 | 0.0002 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kBq to GBq?
1 kBq equals 1e-6 GBq. To convert, multiply the value in kilobecquerels by 1e-6.
How do I convert 1 kBq to GBq?
1 kBq = 1e-6 GBq. For any value, multiply by 1e-6.
How do I convert GBq back to kBq?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 GBq = 1.00000e+6 kBq.
When would I need to convert kilobecquerel to gigabecquerel?
Radioactivity (activity) conversions between kBq and GBq are routine in health physics, nuclear medicine ordering, environmental monitoring, radiopharmacy and reactor/accelerator-source documentation. The becquerel (Bq) is the SI unit; the curie (Ci) is the legacy unit (1 Ci ≡ 3.7×10¹⁰ Bq exactly). This category is strictly activity (decays per second) — it does NOT cover absorbed dose (Gy, rad), dose equivalent (Sv, rem), exposure or dose rate, all of which are different physical quantities and live in separate categories.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).