Convert Microcuries to Gigabecquerels (µCi to GBq)
1 microcurie (µCi) = 0.000037 gigabecquerels (GBq). 1 GBq = 27027.02703 µCi. Example: 15 µCi = 15 × 0.000037 = 0.000555 GBq.
Also searched as microcuries to GBq, microcuries in GBq, microcuries into gigabecquerels, µCi to GBq, µCi in gigabecquerels, µCi into gigabecquerel, microcurie to gigabecquerel, µCi to gigabecquerels converter and how many gigabecquerels in a microcurie.
1 µCi = 0.000037 GBq
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk microcurie to gigabecquerel converter to paste a column from Excel.
How to Convert Microcurie to Gigabecquerel
- 1 µCi = 0.000037 GBq
- 1 GBq = 27027.02703 µCi
- Example: convert 15 µCi to GBq: 15 µCi = 15 × 0.000037 GBq = 0.000555 GBq
Formula
GBq = µCi × 0.000037
or GBq = µCi ÷ 27027.02702703
Derivation from SI units:
- 1 µCi = 3.7 × 10⁴ Bq = 37 kBq.
- 1 GBq = 10⁹ Bq.
- 1 µCi = 37000 Bq ÷ 1000000000 Bq per GBq = 0.000037 GBq
Both units are defined exactly, so the factor is exact. Microcurie definition: microcurie; Gigabecquerel definition: gigabecquerel.
Worked examples
- A reading of 2 µCi converts to 0.000074 GBq.
2 µCi × 0.000037 = 0.000074 GBq - A value of 20 µCi is 0.00074 GBq.
20 µCi × 0.000037 = 0.00074 GBq
Microcurie to Gigabecquerel conversion table
| Microcuries (µCi) | Gigabecquerels (GBq) |
|---|---|
| 0.1 µCi | 0.0000037 GBq |
| 0.5 µCi | 0.0000185 GBq |
| 1 µCi | 0.000037 GBq |
| 2 µCi | 0.000074 GBq |
| 5 µCi | 0.000185 GBq |
| 10 µCi | 0.00037 GBq |
| 20 µCi | 0.00074 GBq |
| 50 µCi | 0.00185 GBq |
| 100 µCi | 0.0037 GBq |
| 1000 µCi | 0.037 GBq |
Where it's used
Microcuries are used for check and calibration sources, while gigabecquerels appear in radioiodine therapy (1–7 GBq). Both measure activity of a radioactive source, so the conversion is a fixed factor.
Microcurie to other radioactivity units
| Conversion | 1 µCi equals |
|---|---|
| microcurie to gigabecquerel | 0.000037 GBq |
| microcurie to becquerel | 37000 Bq |
| microcurie to curie | 0.000001 Ci |
| microcurie to megabecquerel | 0.037 MBq |
| microcurie to millicurie | 0.001 mCi |
| microcurie to picocurie | 1000000 pCi |
| microcurie to kilobecquerel | 37 kBq |
| microcurie to disintegration per minute | 2220000 dpm |
Show 3 more units
| microcurie to terabecquerel | 3.7 × 10⁻⁸ TBq |
|---|---|
| microcurie to nanocurie | 1000 nCi |
| microcurie to rutherford | 0.037 Rd |
Frequently asked questions
How many gigabecquerels are in 1 microcurie?
1 µCi = 0.000037 GBq.
How do I convert microcuries to gigabecquerels?
Multiply the value in µCi by 0.000037, or divide it by 27027.02703. For example, 15 µCi × 0.000037 = 0.000555 GBq.
Is the µCi to GBq conversion exact?
Yes. Both units are defined exactly, and 1 µCi is exactly 0.000037 GBq.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "curie".
- 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 Microcuries to Gigabecquerels (µCi to GBq). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/microcuries-to-gigabecquerels/
IEEE
Scientific Converters, "Convert Microcuries to Gigabecquerels (µCi to GBq)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/microcuries-to-gigabecquerels/