Centigrays to Millirads Converter
Enter the absorbed radiation dose in centigrays below to convert it to millirads.
Convert Centigrays to Millirads
Enter a value in centigrays (cGy) to convert to millirads (mrad).
Centigray to Millirad Conversion Table
Table showing various centigray measurements converted to millirads. Click any preset value or arrow to load it into the converter.
| Centigrays (cGy) | Millirads (mrad) |
|---|---|
| 1 cGy | 1,000 mrad |
| 2 cGy | 2,000 mrad |
| 2.5 cGy | 2,500 mrad |
| 5 cGy | 5,000 mrad |
| 10 cGy | 10,000 mrad |
| 15 cGy | 15,000 mrad |
| 20 cGy | 20,000 mrad |
| 25 cGy | 25,000 mrad |
| 30 cGy | 30,000 mrad |
| 50 cGy | 50,000 mrad |
How to Convert Centigrays to Millirads
To convert centigrays to millirads, multiply the absorbed radiation dose by the following conversion ratio: 1,000 millirads/centigray.
Since one centigray is equal to 1,000 millirads, you can use this simple formula to convert:
The absorbed radiation dose in millirads is equal to the absorbed radiation dose in centigrays multiplied by 1,000.
For example, here's how to convert 5 centigrays to millirads using the formula above.
How Many Millirads Are in a Centigray?
There are 1,000 millirads in a centigray, which is why we use this value in the formula above.
Our centigray to millirad calculator automatically converts your absorbed radiation dose measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Centigrays and millirads are both units used to measure absorbed radiation dose. Keep reading to learn more about each unit.
What Is a Centigray?
A centigray is a unit of absorbed radiation dose equal to 1/100 of a gray (0.01 Gy). Radiotherapy dose unit numerically equal to 1 rad (0.01 Gy). [1]
The centigray is classified as a metric and SI-compatible unit of absorbed radiation dose. Centigrays can be abbreviated as cGy; for example, 1 centigray can be written as 1 cGy.
In the metric system, "centi" is the standard SI prefix for hundredths, or 10⁻². This makes the centigray (cGy) a convenient decimal multiple of the gray (Gy).
In practice, centigrays (cGy) are widely used across fine-tolerance laboratory, analytical, and micro-scale absorbed radiation dose measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Millirad?
A millirad is a unit of absorbed radiation dose equal to 1/100,000 of a gray (0.00001 Gy). One-thousandth of a rad (10 µGy). [2]
The millirad is classified as a standard unit of absorbed radiation dose. Millirads can be abbreviated as mrad; for example, 1 millirad can be written as 1 mrad.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millirad (mrad) a convenient decimal multiple of the gray (Gy).
In practice, millirads (mrad) are widely used across fine-tolerance laboratory, analytical, and micro-scale absorbed radiation dose measurements within international standard workflows, engineering documentation, and technical data sheets.
When converting absorbed radiation dose between centigrays (cGy) and millirads (mrad), keep full floating-point precision (1 cGy = 1,000 mrad; 1 mrad = 0.001 cGy) during intermediate calculations and round only the final millirad figure to match your instrument tolerance.
More Centigray & Millirad Conversions
Need to calculate in the opposite direction? Use our millirads to centigrays calculator to switch your starting unit immediately. You can also explore related tools such as converting millirads to centigrays, converting centigrays to grays, or converting grays to centigrays.
Convert from Centigrays
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Radiation-Absorbed Dose Metrology Standard — Centigrays (cGy) to Millirads (mrad)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Centigray (cGy) & Millirad (mrad)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (cGy to mrad)