Convert Curies to Megabecquerels (Ci to MBq)
1 curie (Ci) = 37000 megabecquerels (MBq). 1 MBq = 0.00002702702703 Ci. Example: 15 Ci = 15 × 37000 = 555000 MBq.
Also searched as curies to MBq, curies in MBq, curies into megabecquerels, Ci to MBq, Ci in megabecquerels, Ci into megabecquerel, curie to megabecquerel, Ci to megabecquerels converter and how many megabecquerels in a curie.
1 Ci = 37000 MBq
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk curie to megabecquerel converter to paste a column from Excel.
How to Convert Curie to Megabecquerel
- 1 Ci = 37000 MBq
- 1 MBq = 0.00002702702703 Ci
- Example: convert 15 Ci to MBq: 15 Ci = 15 × 37000 MBq = 555000 MBq
Formula
MBq = Ci × 37000
Derivation from SI units:
- 1 Ci = 3.7 × 10¹⁰ Bq exactly (originally the activity of 1 g of radium-226).
- 1 MBq = 10⁶ Bq.
- 1 Ci = 37000000000 Bq ÷ 1000000 Bq per MBq = 37000 MBq
Both units are defined exactly, so the factor is exact. Curie definition: curie; Megabecquerel definition: megabecquerel.
Worked examples
- A reading of 2 Ci converts to 74000 MBq.
2 Ci × 37000 = 74000 MBq - A value of 20 Ci is 740000 MBq.
20 Ci × 37000 = 740000 MBq
Curie to Megabecquerel conversion table
| Curies (Ci) | Megabecquerels (MBq) |
|---|---|
| 0.1 Ci | 3700 MBq |
| 0.5 Ci | 18500 MBq |
| 1 Ci | 37000 MBq |
| 2 Ci | 74000 MBq |
| 5 Ci | 185000 MBq |
| 10 Ci | 370000 MBq |
| 20 Ci | 740000 MBq |
| 50 Ci | 1850000 MBq |
| 100 Ci | 3700000 MBq |
| 1000 Ci | 37000000 MBq |
Where it's used
Curies are used for US nuclear regulation and licences, while megabecquerels appear in PET and SPECT doses (e.g. 370 MBq of F-18 FDG). Both measure activity of a radioactive source, so the conversion is a fixed factor.
Curie to other radioactivity units
| Conversion | 1 Ci equals |
|---|---|
| curie to megabecquerel | 37000 MBq |
| curie to becquerel | 37000000000 Bq |
| curie to millicurie | 1000 mCi |
| curie to picocurie | 1000000000000 pCi |
| curie to kilobecquerel | 37000000 kBq |
| curie to gigabecquerel | 37 GBq |
| curie to microcurie | 1000000 µCi |
| curie to disintegration per minute | 2220000000000 dpm |
Show 3 more units
| curie to terabecquerel | 0.037 TBq |
|---|---|
| curie to nanocurie | 1000000000 nCi |
| curie to rutherford | 37000 Rd |
Frequently asked questions
How many megabecquerels are in 1 curie?
1 Ci = 37000 MBq.
How do I convert curies to megabecquerels?
Multiply the value in Ci by 37000. For example, 15 Ci × 37000 = 555000 MBq.
Is the Ci to MBq conversion exact?
Yes. Both units are defined exactly, and 1 Ci is exactly 37000 MBq.
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 Curies to Megabecquerels (Ci to MBq). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/curies-to-megabecquerels/
IEEE
Scientific Converters, "Convert Curies to Megabecquerels (Ci to MBq)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/curies-to-megabecquerels/