Convert Curie to Microcurie
Input the number of curies you want to convert to microcuries.
How to Convert Curies to Microcuries
The curie and microcurie are both units of radioactivity. By definition, 1 curie equals exactly 1000000 microcuries. This means to convert curies to microcuries, you multiply by 1000000.
Formula
Step-by-Step Example
Convert 5 Ci to microcuries:
We need to convert curies to microcuries
Since 1 Ci = 1000000 μCi, multiply by 1000000
5 × 1000000 = 5000000
5 Ci = 5000000 μCi
Curie to Microcurie Conversion Table
Quick reference table for common curie to microcurie conversions. Click any value for detailed calculation.
| Curies (Ci) | Microcuries (μCi) |
|---|---|
| 0.1 Ci | 100000 μCi |
| 0.5 Ci | 500000 μCi |
| 1 Ci | 1000000 μCi |
| 2 Ci | 2000000 μCi |
| 5 Ci | 5000000 μCi |
| 10 Ci | 10000000 μCi |
| 25 Ci | 25000000 μCi |
| 50 Ci | 50000000 μCi |
| 100 Ci | 100000000 μCi |
About These Units
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.
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 curies to microcuries?
To convert curies to microcuries, multiply the value by 1000000. For example, 10 Ci = 10000000 μCi.
How many microcuries are in 1 curie?
1 curie equals 1000000 microcuries.
What is the formula for curies to microcuries?
The formula is: μCi = Ci × 1000000.