Which radioactivity units does this converter support?

It supports Bq, kBq, MBq, GBq, Ci, mCi, µCi, and dpm.

What is the relationship between curies and becquerels?

One curie equals exactly 3.7×10^10 Bq, or 37 GBq.

How are dpm and Bq related?

One Bq equals 60 disintegrations per minute, so 1 dpm equals 1/60 Bq.

Can I convert microcuries to kilobecquerels?

Yes. For example, 1 µCi equals 37 kBq.

How many decimal places can I display?

You can choose from 0 to 12 decimal places, with 6 as the default.

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Radioactivity Converter (Bq / Ci / dpm)

Convert radioactivity (radionuclide activity) between becquerel (Bq, SI base = 1 decay/s), kilo/mega/gigabecquerel, curie (Ci = 3.7×10^10 Bq, exact 1950 ICRU definition, originally the activity of 1 g of radium-226), milli/microcurie, and disintegrations per minute (dpm = 1/60 Bq, exact). Converts via becquerel to the target unit and lists the equivalent value in all eight units. Reference: banana (K-40) ≈ 15 Bq, smoke detector (Am-241) ≈ 37 kBq = 1 µCi.

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2 examples

1 Ci → GBq = 37

1 curie × 3.7e10 = 37,000,000,000 Bq = 37 GBq = 2.22e12 dpm. Originally the activity of 1 g of radium-226.

{"result":"1 Ci = 37 GBq. All units: Bq=3.7e+10, kBq=3.7e+7, MBq=3.7e+4, GBq=37, Ci=1, mCi=1000, µCi=1000000, dpm=2.22e+12.","metadata":{"input":{"inputUnit":"Ci","value":1,"outputUnit":"GBq"},"result":{"outputValue":37,"outputUnit":"GBq","Bq":3.7e10,"kBq":3.7e7,"MBq":3.7e4,"GBq":37,"Ci":1,"mCi":1000,"µCi":1000000,"dpm":2.22e12}}}

1 µCi (smoke detector) → kBq = 37

1 microcurie = 3.7e4 Bq = 37 kBq = 2.22e6 dpm. Typical Am-241 activity in a household ionization smoke detector.

{"result":"1 µCi = 37 kBq. All units: Bq=37000, kBq=37, MBq=0.037, GBq=0.000037, Ci=0.000001, mCi=0.001, µCi=1, dpm=2220000.","metadata":{"input":{"inputUnit":"µCi","value":1,"outputUnit":"kBq"},"result":{"outputValue":37,"outputUnit":"kBq","Bq":37000,"kBq":37,"MBq":0.037,"GBq":0.000037,"Ci":0.000001,"mCi":0.001,"µCi":1,"dpm":2220000}}}

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4 options

SettingsAdjust formats, ranges, numbers, and modes.4

Input unitselectOptionalValuenumberRequiredActivity in the selected Input unit. Must be non-negative.Output unitselectOptionalDecimal PlacesnumberOptional

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Radioactivity Converter (Bq / Ci / dpm)

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Examples

1. Convert curies to gigabecquerels

2. Convert a smoke detector activity

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