Radioactivity
GBqtoPBq
Convert gigabecquerels (GBq) to petabecquerels (PBq).
Factor1 GBq = 1e-6 PBq
Converter
GBq
Accepts numbers or expressions, e.g. 150 + 14.7
Result
PBq
Rendered to 6 significant figures.
Formula
Formula
PBq = GBq × 1e-6
Multiply any value in gigabecquerels by 1e-6 to obtain the value in petabecquerels.
Worked example
Convert 1.00000e+6 GBq to PBq.
- 01Start with 1.00000e+6 GBq.
- 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 PBq.
Result1.00000e+6 GBq = 1 PBq
Conversion table
| GBq | PBq |
|---|---|
| 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 GBq to PBq?
1 GBq equals 1e-6 PBq. To convert, multiply the value in gigabecquerels by 1e-6.
How do I convert 1 GBq to PBq?
1 GBq = 1e-6 PBq. For any value, multiply by 1e-6.
How do I convert PBq back to GBq?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 PBq = 1.00000e+6 GBq.
When would I need to convert gigabecquerel to petabecquerel?
Radioactivity (activity) conversions between GBq and PBq 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).