rad to gy Conversion Tool
Convert rad to gy instantly. Simple, accurate radiation dose conversion. Enter rad values and get gray results with our fast online converter.
Rad
Gray
How to convert rad to gy
Three simple steps for accurate radiation dose conversion.
Enter the rad value
Type or paste the absorbed dose amount in rad into the input field.
Apply the conversion
The tool multiplies your input by 0.01 to calculate the equivalent in gray.
Read your result
Your converted value appears instantly in the gy output field.
Why use this rad to gy Converter?
Accurate physics conversions without manual calculations.
The Mathematical Formula
The conversion uses Gy = rad × 0.01, since 1 rad equals one-hundredth of a gray.
Instant Calculations
Skip manual math and get precise results in milliseconds for any input value.
Scientific Reliability
Built on SI-standard definitions, making it trustworthy for academic and lab work.
Quick Reference
| Rad | Gray |
|---|---|
| 1 rad | 0.01 gy |
| 2 rad | 0.02 gy |
| 5 rad | 0.05 gy |
| 10 rad | 0.1 gy |
| 20 rad | 0.2 gy |
| 50 rad | 0.5 gy |
Practical Examples of rad to gy
Real-world scenarios where this conversion is useful.
Chest X-ray Dose
A typical chest X-ray delivers about 0.1 rad, which equals 0.001 Gy of absorbed dose.
CT Scan Exposure
An abdominal CT scan producing 1 rad converts to 0.01 Gy for medical records.
Radiation Therapy
A treatment dose of 200 rad translates to 2 Gy using standard SI units.
Lab Calibration
Calibrating detectors at 50 rad means setting the reference to 0.5 Gy.
Frequently Asked Questions
Common queries regarding this specific conversion.
Q.What is the relationship between rad and gy?
Both units measure absorbed radiation dose. One gray equals exactly 100 rad, making the rad a smaller legacy unit.
Q.How do you convert rad to gy manually?
Multiply the rad value by 0.01. For example, 150 rad becomes 1.5 Gy.
Q.Is the rad still used today?
The rad is largely replaced by the gray in scientific literature, though some industries still reference it.
Q.Which unit is the SI standard?
The gray (Gy) is the official SI unit for absorbed dose, defined as one joule per kilogram.
Discover Related Tools
Need to convert back? Use the reverse Gray to Rad calculator. For other measurements, explore our complete suite of Radiation Converters or the full Unit Converter Hub.