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Curies to Becquerels Converter (Ci to Bq)

1 Ci = 37,000,000,000 Bq. Type any value to convert curies to becquerels.

1 Ci = 37,000,000,000 Bq

Formula: Bq = Ci × 37,000,000,000

Common values
Decimals
In every unit 8 units
Becquerel (Bq) 37,000,000,000 Bq
Kilobecquerel (kBq) 37,000,000 kBq
Megabecquerel (MBq) 37,000 MBq
Gigabecquerel (GBq) 37 GBq
Curie (Ci) 1 Ci
Millicurie (mCi) 1,000 mCi
Microcurie (µCi) 1,000,000 µCi
Rutherford (Rd) 37,000 Rd

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If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Calculated in your browser – nothing you type is sent anywhere. Privacy details

Curies to becquerels table

Formula: Bq = Ci × 37,000,000,000

Curie (Ci)Becquerel (Bq)
0.1 Ci3,700,000,000 Bq
0.25 Ci9,250,000,000 Bq
0.5 Ci18,500,000,000 Bq
1 Ci37,000,000,000 Bq
2 Ci74,000,000,000 Bq
3 Ci111,000,000,000 Bq
4 Ci148,000,000,000 Bq
5 Ci185,000,000,000 Bq
6 Ci222,000,000,000 Bq
7 Ci259,000,000,000 Bq
8 Ci296,000,000,000 Bq
9 Ci333,000,000,000 Bq
10 Ci370,000,000,000 Bq
12 Ci444,000,000,000 Bq
15 Ci555,000,000,000 Bq
20 Ci740,000,000,000 Bq
25 Ci925,000,000,000 Bq
30 Ci1,110,000,000,000 Bq
40 Ci1,480,000,000,000 Bq
50 Ci1,850,000,000,000 Bq
60 Ci2,220,000,000,000 Bq
75 Ci2,775,000,000,000 Bq
100 Ci3,700,000,000,000 Bq
150 Ci5,550,000,000,000 Bq
200 Ci7,400,000,000,000 Bq
250 Ci9,250,000,000,000 Bq
500 Ci18,500,000,000,000 Bq
1,000 Ci37,000,000,000,000 Bq

How to use: Curies to Becquerels

  1. 1 Type the value in curies.
  2. 2 The result in becquerels appears at once – or type in the becquerels field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of radioactivity.

About this tool

Curie (Ci) is a unit of radioactivity; 1 Ci = 37,000,000,000 Bq. Becquerel (Bq) is a unit of radioactivity (SI).

To convert curies to becquerels, multiply the value by 37,000,000,000 (Bq = Ci × 37,000,000,000). Example: 100 Ci = 3,700,000,000,000 Bq.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert curies to becquerels?

To convert curies to becquerels, multiply the value by 37,000,000,000: Bq = Ci × 37,000,000,000. For example 100 Ci = 3,700,000,000,000 Bq.

What is 1 Ci in becquerels?

1 Ci = 37,000,000,000 Bq. The other way round, 1 Bq = 2.702702703 × 10⁻¹¹ Ci.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of radioactivity here?

Yes – choose any of the 8 units of radioactivity in the From and To lists, or switch to another measurement at the top.

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