Use this gray to rad converter to change a gray measurement into its rad equivalent. Enter a number in the calculator above and the result updates instantly.
Radiation dose conversions are useful for physics references, absorbed dose calculations, dosimetry tables, lab work, and radiation measurement.
What is a gray?
Gray (Gy) is a radiation dose unit.
What is a rad?
Rad (rad) is a radiation dose unit.
Gray to Rad Converter formula
To convert gray to rad, use the formula below.
1 Gy = 100 rad. This relationship is the conversion factor used by the calculator.
How to convert gray to rad
Start with the gray value, apply the formula, and round the result only after the calculation is complete.
Example: 10 Gy = 1,000 rad.
- 1 Gy = 100 rad
- 10 Gy = 1,000 rad
- 100 Gy = 10,000 rad
Manual conversion steps
- Write down the value in gray.
- Use the conversion formula: rad = gray x 100.
- Calculate the result in rad.
- Round the answer to the number of decimal places you need.
For quick checking, the converter above performs the same calculation automatically.
Common gray to rad use cases
This conversion is useful in practical situations where measurements need to move between different unit systems or audiences.
- Convert gray to rad for absorbed dose references, physics calculations, dosimetry tables, and laboratory work.
- Radiation dose conversions are useful when older units such as rad appear beside SI units such as gray.
Common mistakes when converting gray to rad
These are the most common issues to watch for when doing this conversion by hand.
- Do not mix up the direction of the conversion. gray to rad is not the same as rad to gray.
- Avoid rounding too early. Keep the full result during the calculation, then round the final answer.
Gray to Rad conversion table
| Gray | Rad |
|---|---|
| 1 Gy | 100 rad |
| 5 Gy | 500 rad |
| 10 Gy | 1,000 rad |
| 25 Gy | 2,500 rad |
| 50 Gy | 5,000 rad |
| 100 Gy | 10,000 rad |
How to convert rad to gray
To reverse the conversion, switch the two units in the calculator or open the reverse conversion page: rad to gray.
Reversing the units is useful when you already have a value in rad and need the equivalent value in gray.
How to use this gray to rad converter
- Enter the number you want to convert in the value field.
- Confirm that the from unit is Gray and the to unit is Rad.
- Read the converted result in the result box.
- Use the copy button if you want to paste the answer elsewhere.
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FAQ
What is the formula for gray to rad?
The formula is: rad = gray x 100.
How do I convert gray to rad by hand?
Write down the value in gray, apply the formula, and round the final result in rad.
How accurate is this converter?
The converter uses standard conversion factors and shows rounded results for readability.
Can I reverse the conversion?
Yes. Use the swap button in the converter or open the related reverse conversion page.
Why do results sometimes have many decimal places?
Some unit conversions do not produce short decimal values. Keep more decimal places for technical work, and round the answer for everyday use.