Convert mCi to μCi
Enter the number of millicuries that you want to convert to microcuries.
How to Convert Millicuries to Microcuries
The millicurie and microcurie are both units of radioactivity. By definition, 1 millicurie equals exactly 1e12 microcuries. This means to convert millicuries to microcuries, you multiply by 1e12.
Formula
Step-by-Step Example
Convert 5 mCi to microcuries:
We need to convert millicuries to microcuries
Since 1 mCi = 1e12 μCi, multiply by 1e12
5 × 1e12 = 5e12
5 mCi = 5e12 μCi
Millicurie to Microcurie Conversion Table
Quick reference table for common millicurie to microcurie conversions. Click any value for detailed calculation.
| Millicuries (mCi) | Microcuries (μCi) |
|---|---|
| 0.1 mCi | 100000000000 μCi |
| 0.5 mCi | 500000000000 μCi |
| 1 mCi | 1e12 μCi |
| 2 mCi | 2e12 μCi |
| 5 mCi | 5e12 μCi |
| 10 mCi | 1e13 μCi |
| 25 mCi | 2.5e13 μCi |
| 50 mCi | 5e13 μCi |
| 100 mCi | 1e14 μCi |
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.
Microcurie (μCi)
A microcurie (μCi) equals 10⁻⁶ curie or 37 kBq. Common for laboratory tracer experiments, radioactive check sources (1-10 μCi), exempt quantity limits, and calibration standards. One microcurie = 2.22 million disintegrations per minute.
Frequently Asked Questions
How do I convert millicuries to microcuries?
To convert millicuries to microcuries, multiply the value by 1e12. For example, 10 mCi = 1e13 μCi.
How many microcuries are in 1 millicurie?
1 millicurie equals 1e12 microcuries.
What is the formula for millicuries to microcuries?
The formula is: μCi = mCi × 1e12.