Curies to Becquerels (Ci to Bq)
Free online curie to becquerel converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
RADIOACTIVITY CONVERTER — INSTANT RESULT
Formula: multiply the curie value by 37,000,000,000 — i.e. Bq = Ci × 37,000,000,000
Quick check: 1 Ci = 37,000,000,000 Bq
Quick check: 1 Ci = 37,000,000,000 Bq
Curies to Becquerels conversion table
| Curies (Ci) | Becquerels (Bq) |
|---|---|
| 1 Ci | 37,000,000,000 Bq |
| 2 Ci | 74,000,000,000 Bq |
| 3 Ci | 111,000,000,000 Bq |
| 4 Ci | 148,000,000,000 Bq |
| 5 Ci | 185,000,000,000 Bq |
| 6 Ci | 222,000,000,000 Bq |
| 7 Ci | 259,000,000,000 Bq |
| 8 Ci | 296,000,000,000 Bq |
| 9 Ci | 333,000,000,000 Bq |
| 10 Ci | 370,000,000,000 Bq |
| 15 Ci | 555,000,000,000 Bq |
| 20 Ci | 740,000,000,000 Bq |
| 25 Ci | 925,000,000,000 Bq |
| 30 Ci | 1.11e+12 Bq |
| 40 Ci | 1.48e+12 Bq |
| 50 Ci | 1.85e+12 Bq |
| 75 Ci | 2.775e+12 Bq |
| 100 Ci | 3.7e+12 Bq |
| 250 Ci | 9.25e+12 Bq |
| 500 Ci | 1.85e+13 Bq |
| 1,000 Ci | 3.7e+13 Bq |
How to convert curies to becquerels
To convert curies to becquerels, multiply the amount in curies by 37,000,000,000. For example, 10 Ci = 370,000,000,000 Bq. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert radioactive activity between becquerels and curies. One curie is exactly 3.7×10¹⁰ decays per second (becquerels).
Frequently asked questions
How many becquerels are in one curie?
One curie is exactly 37,000,000,000 becquerels.
How do I convert Ci to Bq?
Multiply the Ci value by 37,000,000,000 to get Bq. The converter at the top of this page does this automatically and works in both directions.
How much is 100 curies in becquerels?
100 curies equals 3.7e+12 becquerels.