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Millicurie (mCi)

One thousandth of a curie: exactly 37 MBq.

What is a millicurie?

Symbol
mCi
Quantity
Radioactivity
Unit system
other
Definition
One thousandth of a curie: exactly 37 MBq.
Exact
Yes, the value is exact by definition
Source
NIST Special Publication 811 (2008), Appendix B.8

Common applications

Used in US nuclear medicine for patient doses and for laboratory and calibration sources.

Millicurie in other radioactivity units

Millicurie quick reference

Millicurie in other units
MillicurieMegabecquerelGigabecquerelCurie
1 mCi= 37 MBq= 0.037 GBq= 0.001 Ci
10 mCi= 370 MBq= 0.37 GBq= 0.01 Ci
100 mCi= 3700 MBq= 3.7 GBq= 0.1 Ci
1000 mCi= 37000 MBq= 37 GBq= 1 Ci

Where the millicurie fits

The next smaller radioactivity unit is the megabecquerel (MBq). 1 mCi = 37 MBq, and 1 MBq ≈ 0.02702702703 mCi.

The next larger radioactivity unit is the gigabecquerel (GBq). 1 mCi = 0.037 GBq, and 1 GBq ≈ 27.02702703 mCi.

Frequently asked questions

How many megabecquerels are in one millicurie?
One millicurie = 37 MBq (megabecquerels).
How many gigabecquerels are in one millicurie?
One millicurie = 0.037 GBq (gigabecquerels).
How many curies are in one millicurie?
One millicurie = 0.001 Ci (curies).