Centigrays to Rads Converter
Enter the absorbed radiation dose in centigrays below to convert it to rads.
Convert Centigrays to Rads
Enter a value in centigrays (cGy) to convert to rads (rad).
Centigray to Rad Conversion Table
Table showing various centigray measurements converted to rads. Click any preset value or arrow to load it into the converter.
How to Convert Centigrays to Rads
To convert centigrays to rads, multiply the absorbed radiation dose by the following conversion ratio: 1 rads/centigray.
Since one centigray is equal to 1 rads, you can use this simple formula to convert:
The absorbed radiation dose in rads is equal to the absorbed radiation dose in centigrays multiplied by 1.
For example, here's how to convert 5 centigrays to rads using the formula above.
How Many Rads Are in a Centigray?
There are 1 rads in a centigray, which is why we use this value in the formula above.
Our centigray to rad calculator automatically converts your absorbed radiation dose measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Centigrays and rads 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 Rad?
A rad is a unit of absorbed radiation dose equal to 1/100 of a gray (0.01 Gy). CGS absorbed dose unit equal to 100 erg/g or 0.01 Gray (1 cGy). [2]
The rad is classified as a standard unit of absorbed radiation dose. Rads can be abbreviated as rad; for example, 1 rad can be written as 1 rad.
When working with rads (rad) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, rads (rad) 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 rads (rad), keep full floating-point precision (1 cGy = 1 rad; 1 rad = 1 cGy) during intermediate calculations and round only the final rad figure to match your instrument tolerance.
More Centigray & Rad Conversions
Need to calculate in the opposite direction? Use our rads to centigrays calculator to switch your starting unit immediately. You can also explore related tools such as converting rads to centigrays, converting centigrays to grays, or converting grays to centigrays.
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Radiation-Absorbed Dose Metrology Standard — Centigrays (cGy) to Rads (rad)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Centigray (cGy) & Rad (Radiation Absorbed Dose) (rad)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (cGy to rad)