Radioactivity
kCitoGBq
Convert kilocuries (kCi) to gigabecquerels (GBq).
Factor1 kCi = 37000 GBq
Converter
kCi
Accepts numbers or expressions, e.g. 150 + 14.7
Result
GBq
Rendered to 6 significant figures.
Formula
Formula
GBq = kCi × 37000
Multiply any value in kilocuries by 37000 to obtain the value in gigabecquerels.
Worked example
Convert 1 kCi to GBq.
- 01Start with 1 kCi.
- 02Multiply by the conversion factor: 1 × 37000 = 37000 GBq.
Result1 kCi = 37000 GBq
Conversion table
| kCi | GBq |
|---|---|
| 1 | 37000 |
| 2 | 74000 |
| 5 | 1.8500e+5 |
| 10 | 3.7000e+5 |
| 20 | 7.4000e+5 |
| 50 | 1.8500e+6 |
| 100 | 3.7000e+6 |
| 200 | 7.4000e+6 |
| 500 | 1.85e+7 |
| 1000 | 3.7e+7 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kCi to GBq?
1 kCi equals 37000 GBq. To convert, multiply the value in kilocuries by 37000.
How do I convert 1 kCi to GBq?
1 kCi = 37000 GBq. For any value, multiply by 37000.
How do I convert GBq back to kCi?
Divide by the same factor — or equivalently, multiply by 2.702703e-5. So 1 GBq = 2.7027e-5 kCi.
When would I need to convert kilocurie to gigabecquerel?
Radioactivity (activity) conversions between kCi 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).