Convert Millicurie to Curie
Convert millicuries to curies by entering a value below.
How to Convert Millicuries to Curies
The millicurie and curie are both units of radioactivity. By definition, 1 millicurie equals exactly 1000000 curies. This means to convert millicuries to curies, you multiply by 1000000.
Formula
Step-by-Step Example
Convert 5 mCi to curies:
We need to convert millicuries to curies
Since 1 mCi = 1000000 Ci, multiply by 1000000
5 × 1000000 = 5000000
5 mCi = 5000000 Ci
Millicurie to Curie Conversion Table
Quick reference table for common millicurie to curie conversions. Click any value for detailed calculation.
| Millicuries (mCi) | Curies (Ci) |
|---|---|
| 0.1 mCi | 100000 Ci |
| 0.5 mCi | 500000 Ci |
| 1 mCi | 1000000 Ci |
| 2 mCi | 2000000 Ci |
| 5 mCi | 5000000 Ci |
| 10 mCi | 10000000 Ci |
| 25 mCi | 25000000 Ci |
| 50 mCi | 50000000 Ci |
| 100 mCi | 100000000 Ci |
About These Units
Millicurie (mCi)
A millicurie (mCi) equals 0.001 curie or 37 MBq. Standard unit for nuclear medicine imaging in US: thyroid uptake 0.1-0.2 mCi, bone scan 20-30 mCi, cardiac stress test 25-35 mCi. Laboratory calibration sources: 1-10 mCi typical.
Curie (Ci)
The curie (Ci) is the traditional unit of radioactivity, originally defined as the activity of 1 gram of Ra-226. One curie = 3.7×10¹⁰ decays/second = 37 GBq exactly. Named after Marie and Pierre Curie. Still used in US nuclear medicine and industry.
Frequently Asked Questions
How do I convert millicuries to curies?
To convert millicuries to curies, multiply the value by 1000000. For example, 10 mCi = 10000000 Ci.
How many curies are in 1 millicurie?
1 millicurie equals 1000000 curies.
What is the formula for millicuries to curies?
The formula is: Ci = mCi × 1000000.