Becquerel to Curie Converter
1 becquerel is about 2.702702703e-11 curies. Convert becquerels (Bq) to curies (Ci) below: type a value and the result updates as you type.
Bq to Ci calculator
Result
Becquerel to Curie conversion
1 Bq ≈ 2.702702703e-11 Cione becquerel in curies
1 Ci = 37000000000 Bqone curie in becquerels
Becquerel (Bq): SI unit of radioactivity: one decay per second.
Curie (Ci): Older unit of radioactivity, originally about one gram of radium-226: exactly 3.7 × 10¹⁰ Bq.
Source:Becquerel: SI Brochure, 9th edition (BIPM, 2019); Curie: NIST Special Publication 811 (2008), Appendix B.8
How to convert becquerels to curies
To convert becquerels to curies, divide the number of becquerels by 37000000000.
Formula
Ci = Bq ÷ 37000000000
Examples
- 5 Bq = 5 ÷ 37000000000 ≈ 1.351351351e-10 Ci
- 25 Bq = 25 ÷ 37000000000 ≈ 6.756756757e-10 Ci
- 100 Bq = 100 ÷ 37000000000 ≈ 2.702702703e-9 Ci
Becquerel to Curie conversion table
| Becquerel (Bq) | Curie (Ci) |
|---|---|
| 0.1 Bq | 2.702702703e-12 Ci |
| 0.5 Bq | 1.351351351e-11 Ci |
| 1 Bq | 2.702702703e-11 Ci |
| 2 Bq | 5.405405405e-11 Ci |
| 3 Bq | 8.108108108e-11 Ci |
| 5 Bq | 1.351351351e-10 Ci |
| 10 Bq | 2.702702703e-10 Ci |
| 20 Bq | 5.405405405e-10 Ci |
| 25 Bq | 6.756756757e-10 Ci |
| 50 Bq | 1.351351351e-9 Ci |
| 100 Bq | 2.702702703e-9 Ci |
| 250 Bq | 6.756756757e-9 Ci |
| 500 Bq | 1.351351351e-8 Ci |
| 1000 Bq | 2.702702703e-8 Ci |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many curies are in one becquerel?
- One becquerel is about 2.702702703e-11 curies.
- How do I convert curies to becquerels?
- To convert curies to becquerels, multiply the number of curies by 37000000000. The formula is Bq = Ci × 37000000000.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 37000000000 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a becquerel or a curie?
- A curie is 37000000000 times larger than a becquerel. In other words, a becquerel is exactly 1/37000000000 of a curie.