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Curie to Becquerel
Convert Curie to Becquerel and get the exact value instantly.
1 Ci = 37000000000 Bq
About this conversion
To convert Curie to Becquerel, multiply the number of Curie by 37000000000.
Radioactivity — decays per second — is the becquerel in SI, but the much larger curie persists in medicine and industry, where one curie equals 37 billion becquerels.
Conversion table
| Curie (Ci) | Becquerel (Bq) |
|---|---|
| 1 Ci | 37000000000 Bq |
| 2 Ci | 74000000000 Bq |
| 5 Ci | 185000000000 Bq |
| 10 Ci | 370000000000 Bq |
| 100 Ci | 3700000000000 Bq |
How to use this converter
- Enter your Curie value
Type any number into the Curie field. It starts at 1 so you can read the rate straight away.
- Read the Becquerel result
The amount in Becquerel updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many Becquerel are in one Curie?
- One Curie equals 37000000000 Bq. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Curie to Becquerel conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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