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Radiology Converters
Radiation - Activity Converter
Result
... Rutherford = ... Curie
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Rutherford to Curie Converter
Use this page to convert rutherford values into curie, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 Rd = 0.000027027027027027 Ci
1 Ci = 37,000 Rd
Example: 1000 Rd = 0.027027027027027 Ci
Rutherford
One rutherford is defined as one million disintegrations per second (1 MBq).
History: Named after Ernest Rutherford, the father of nuclear physics. Proposed in 1946.
Current use: Obsolete, replaced by the megabecquerel (MBq).
Also written as Rd, rutherfords.
Curie
One curie is approximately the activity of 1 gram of the radium isotope 226Ra, equal to 3.7E+10 becquerels.
History: Named after Pierre and Marie Curie. Originally defined in 1910.
Current use: Still commonly used in the United States and in some clinical settings alongside the becquerel.
Also written as Ci, curies.
Rutherford to Curie table
| Rutherford [Rd] | Curie [Ci] |
|---|---|
| 0.01 Rd | 0.00000027027027027027 Ci |
| 0.1 Rd | 0.0000027027027027027 Ci |
| 1 Rd | 0.000027027027027027 Ci |
| 2 Rd | 0.0000540540540540541 Ci |
| 5 Rd | 0.000135135135135135 Ci |
| 10 Rd | 0.00027027027027027 Ci |
| 20 Rd | 0.000540540540540541 Ci |
| 50 Rd | 0.00135135135135135 Ci |
| 100 Rd | 0.0027027027027027 Ci |
Frequently asked questions
How many Curie (Ci) are in one Rutherford (Rd)?
One Rutherford equals 0.000027027027027027 Curie.
How do you convert Rutherford to Curie?
Multiply the Rutherford value by 0.000027027027027027 to get the result in Curie.
How do you convert Curie back to Rutherford?
Multiply the Curie value by 37,000 to get back to Rutherford.
What is 1000 Rutherford in Curie?
1000 Rutherford equals 0.027027027027027 Curie.