Converter group
Radiology Converters
Radiation - Absorbed Dose Converter
Result
... Joule per kilogram = ... Gray
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Joule per kilogram to Gray Converter
Use this page to convert joule per kilogram values into gray, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 J/kg = 1 Gy
1 Gy = 1 J/kg
Example: 1 J/kg = 1 Gy
Joule per kilogram
One joule of energy absorbed per kilogram of mass.
History: The base physical definition of the SI unit gray.
Current use: Used in physics and engineering to describe energy absorption directly.
Also written as J/kg, joules per kilogram.
Gray
Defined as the absorption of one joule of radiation energy per kilogram of matter.
History: Named after Louis Harold Gray, a pioneer in the field of radiobiology. Adopted by the CGPM in 1975.
Current use: The primary international unit used in radiotherapy, radiation protection, and radiobiology.
Also written as Gy, grays.
Joule per kilogram to Gray table
| Joule per kilogram [J/kg] | Gray [Gy] |
|---|---|
| 0.01 J/kg | 0.01 Gy |
| 0.1 J/kg | 0.1 Gy |
| 1 J/kg | 1 Gy |
| 2 J/kg | 2 Gy |
| 5 J/kg | 5 Gy |
| 10 J/kg | 10 Gy |
| 20 J/kg | 20 Gy |
| 50 J/kg | 50 Gy |
| 100 J/kg | 100 Gy |
Frequently asked questions
How many Gray (Gy) are in one Joule per kilogram (J/kg)?
One Joule per kilogram equals 1 Gray.
How do you convert Joule per kilogram to Gray?
Multiply the Joule per kilogram value by 1 to get the result in Gray.
How do you convert Gray back to Joule per kilogram?
Multiply the Gray value by 1 to get back to Joule per kilogram.
What is 1 Joule per kilogram in Gray?
1 Joule per kilogram equals 1 Gray.