Convert Curie to Becquerel
Type the number of curies that you wish to convert to becquerels.
How to Convert Curies to Becquerels
The curie and becquerel are both units of radioactivity. By definition, 1 curie equals exactly 37000000000 becquerels. This means to convert curies to becquerels, you multiply by 37000000000.
Formula
Step-by-Step Example
Convert 5 Ci to becquerels:
We need to convert curies to becquerels
Since 1 Ci = 37000000000 Bq, multiply by 37000000000
5 × 37000000000 = 185000000000
5 Ci = 185000000000 Bq
Curie to Becquerel Conversion Table
Quick reference table for common curie to becquerel conversions. Click any value for detailed calculation.
| Curies (Ci) | Becquerels (Bq) |
|---|---|
| 0.1 Ci | 3700000000 Bq |
| 0.5 Ci | 18500000000 Bq |
| 1 Ci | 37000000000 Bq |
| 2 Ci | 74000000000 Bq |
| 5 Ci | 185000000000 Bq |
| 10 Ci | 370000000000 Bq |
| 25 Ci | 925000000000 Bq |
| 50 Ci | 1.85e12 Bq |
| 100 Ci | 3.7e12 Bq |
About These Units
Curie (Ci)
The curie (Ci) is the traditional unit of radioactivity, originally defined as the activity of 1 gram of Ra-226. One curie = 3.7×10¹⁰ decays/second = 37 GBq exactly. Named after Marie and Pierre Curie. Still used in US nuclear medicine and industry.
Becquerel (Bq)
The becquerel (Bq) is the SI unit of radioactivity, measuring decay rate: one becquerel = one nuclear decay per second. Named after Henri Becquerel who discovered radioactivity in 1896. Human body contains ~7,000 Bq from potassium-40. One curie = 37 billion becquerels.
Frequently Asked Questions
How do I convert curies to becquerels?
To convert curies to becquerels, multiply the value by 37000000000. For example, 10 Ci = 370000000000 Bq.
How many becquerels are in 1 curie?
1 curie equals 37000000000 becquerels.
What is the formula for curies to becquerels?
The formula is: Bq = Ci × 37000000000.