Curies to Becquerels Converter
1 curie = 37,000,000,000 becquerels
1 curie equals 37,000,000,000 becquerels
How to convert curies to becquerels
Activity counts decays: 1 Bq = 1 decay/s and 1 Ci = 3.7 × 10¹⁰ Bq. Activity alone does not determine absorbed or equivalent dose; the radionuclide, exposure pathway and geometry also matter.
Bq = Ci × 37000000000One curie is 37000000000 becquerels, so a single multiplication converts any value.
370,000,000,000 Bq = 10 × 37000000000Curies to becquerels conversion table
Common values in curies, converted to becquerels.
| Curies (Ci) | Becquerels (Bq) |
|---|---|
| 1 | 37,000,000,000 |
| 2 | 74,000,000,000 |
| 3 | 111,000,000,000 |
| 4 | 148,000,000,000 |
| 5 | 185,000,000,000 |
| 10 | 370,000,000,000 |
| 20 | 740,000,000,000 |
| 25 | 925,000,000,000 |
| 50 | 1,850,000,000,000 |
| 100 | 3,700,000,000,000 |
| 250 | 9,250,000,000,000 |
| 500 | 18,500,000,000,000 |
| 1,000 | 37,000,000,000,000 |
About these units
curieCi
The legacy unit of radioactivity: exactly 3.7 × 10¹⁰ becquerels.
becquerelBq
The SI unit of radioactivity: one nuclear decay per second.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.