Rad to Gray Conversion
Convert between Rad and Gray quickly and accurately.
How to Convert Rad to Gray
Conversion Formula
Example
Convert 15 rd to Gy:
Unit Information
Learn about the radiation absorbed dose units you're converting between
Rad
rd
Definition
A unit of absorbed radiation dose equal to 0.01 gray, representing the amount of energy deposited in matter by ionizing radiation.
History/Origin
Acronym for "radiation absorbed dose", introduced in the 1950s for measuring radiation absorbed dose in biological tissue.
Current Use
Widely used in radiation therapy, medical physics, and radiation protection, particularly in the United States.
Multiplier
1
Offset
0
Gray
Gy
Definition
The SI base unit of absorbed radiation dose equal to 100 rad, representing one joule of energy absorbed per kilogram of matter.
History/Origin
Named after Louis Harold Gray (1905-1965), the British physicist who made significant contributions to radiation dosimetry.
Current Use
Widely used in radiation therapy, medical physics, and radiation protection worldwide.
Multiplier
100
Offset
0
Rad to Gray Conversion Table
| Rad [rd] | Gray [Gy] |
|---|---|
| 1 rd | 0.01 Gy |
| 10 rd | 0.1 Gy |
| 25 rd | 0.25 Gy |
| 50 rd | 0.5 Gy |
| 100 rd | 1 Gy |
| 0 rd | 0E+0 Gy |
| -10 rd | -0.1 Gy |
| -40 rd | -0.4 Gy |
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