Convert Becquerels to Rutherfords (Bq to Rd)
1 becquerel (Bq) = 0.000001 rutherfords (Rd). 1 Rd = 1000000 Bq. Example: 15 Bq = 15 × 0.000001 = 0.000015 Rd.
Also searched as becquerels to Rd, becquerels in Rd, becquerels into rutherfords, Bq to Rd, Bq in rutherfords, Bq into rutherford, becquerel to rutherford, Bq to rutherfords converter and how many rutherfords in a becquerel.
1 Bq = 0.000001 Rd
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk becquerel to rutherford converter to paste a column from Excel.
How to Convert Becquerel to Rutherford
- 1 Bq = 0.000001 Rd
- 1 Rd = 1000000 Bq
- Example: convert 15 Bq to Rd: 15 Bq = 15 × 0.000001 Rd = 0.000015 Rd
Formula
Rd = Bq ÷ 1000000
Derivation from SI units:
- 1 Bq = 1 decay per second (s⁻¹).
- 1 Rd = 10⁶ Bq (obsolete).
Both units are defined exactly, so the factor is exact. Becquerel definition: becquerel; Rutherford definition: rutherford.
Worked examples
- A reading of 100 Bq converts to 0.0001 Rd.
100 Bq × 0.000001 = 0.0001 Rd - A value of 3700 Bq is 0.0037 Rd.
3700 Bq × 0.000001 = 0.0037 Rd
Becquerel to Rutherford conversion table
| Becquerels (Bq) | Rutherfords (Rd) |
|---|---|
| 1 Bq | 0.000001 Rd |
| 10 Bq | 0.00001 Rd |
| 37 Bq | 0.000037 Rd |
| 100 Bq | 0.0001 Rd |
| 370 Bq | 0.00037 Rd |
| 1000 Bq | 0.001 Rd |
| 3700 Bq | 0.0037 Rd |
| 10000 Bq | 0.01 Rd |
| 37000 Bq | 0.037 Rd |
| 1000000 Bq | 1 Rd |
Where it's used
Becquerels are used for food and environmental radioactivity limits, while rutherfords appear in older nuclear physics literature. Both measure activity of a radioactive source, so the conversion is a fixed factor.
Becquerel to other radioactivity units
| Conversion | 1 Bq equals |
|---|---|
| becquerel to rutherford | 0.000001 Rd |
| becquerel to curie | 2.702702703 × 10⁻¹¹ Ci |
| becquerel to megabecquerel | 0.000001 MBq |
| becquerel to millicurie | 2.702702703 × 10⁻⁸ mCi |
| becquerel to picocurie | 27.02702703 pCi |
| becquerel to kilobecquerel | 0.001 kBq |
| becquerel to gigabecquerel | 1 × 10⁻⁹ GBq |
| becquerel to microcurie | 0.00002702702703 µCi |
Show 3 more units
| becquerel to disintegration per minute | 60 dpm |
|---|---|
| becquerel to terabecquerel | 1 × 10⁻¹² TBq |
| becquerel to nanocurie | 0.02702702703 nCi |
Frequently asked questions
How many rutherfords are in 1 becquerel?
1 Bq = 0.000001 Rd.
How do I convert becquerels to rutherfords?
Multiply the value in Bq by 0.000001, or divide it by 1000000. For example, 15 Bq × 0.000001 = 0.000015 Rd.
Is the Bq to Rd conversion exact?
Yes. Both units are defined exactly, and 1 Bq is exactly 0.000001 Rd.
Sources
- 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).
- 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".
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 Becquerels to Rutherfords (Bq to Rd). Retrieved October 25, 2026, from https://scientificconverters.com/radioactivity/becquerels-to-rutherfords/
IEEE
Scientific Converters, "Convert Becquerels to Rutherfords (Bq to Rd)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/radioactivity/becquerels-to-rutherfords/