Skip to content
UUTOOLS.NET

Theme

Colours

Radioactivity Converter – 8 units of radioactivity

Convert radioactivity between Ci, Bq, mCi, MBq, µCi, kBq and more – exact and instant.

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

Convert on our server?

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

Units of radioactivity

Becquerel (Bq)SI (metric) unit
Kilobecquerel (kBq)SI (metric) unit1 kBq = 1,000 Bq
Megabecquerel (MBq)SI (metric) unit1 MBq = 1,000,000 Bq
Gigabecquerel (GBq)SI (metric) unit1 GBq = 1,000,000,000 Bq
Curie (Ci)unit1 Ci = 37,000,000,000 Bq
Millicurie (mCi)unit1 mCi = 37,000,000 Bq
Microcurie (µCi)unit1 µCi = 37,000 Bq
Rutherford (Rd)unit1 Rd = 1,000,000 Bq

How to use: Radioactivity Converter

  1. 1 Pick the unit you have and the unit you need.
  2. 2 Type the value – the result in the other unit appears at once (type in the result field to convert back).
  3. 3 Use a common value, set the decimals or swap the units with one click.
  4. 4 Open “In every unit” to see the value in all 8 units of radioactivity.

About this tool

Radioactivity, the number of decays per second, is measured in becquerels; older sources use curies.

Here every value is converted through the becquerel (Bq). Choose any two of the 8 units below the converter, or start from one of the popular conversions.

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

Frequently asked questions

Which units of radioactivity can I convert?

Becquerel (Bq), Kilobecquerel (kBq), Megabecquerel (MBq), Gigabecquerel (GBq), Curie (Ci), Millicurie (mCi), Microcurie (µCi) and Rutherford (Rd).

Which radioactivity conversions are used most?

1 Ci = 37,000,000,000 Bq; 1 mCi = 37 MBq; 1 µCi = 37 kBq.

How exact is the converter?

Each unit is defined by its official value in Bq, so conversions are exact up to the 10 significant digits shown; you can round to 0–6 decimals.

Related tools