Radiation Dose Converter
Convert absorbed radiation dose among Gy, mGy, and rad using gray as the reference.
How to use
- Enter absorbed dose and choose the source/target among Gy, mGy, and rad; do not treat the result as sieverts.
Capabilities and scope
Compare absorbed dose—radiation energy deposited per unit mass—in SI gray and the older rad unit.
How it works
Gray is the reference with mGy=10⁻³ Gy and 1 rad=0.01 Gy.
Example
100 rad equals 1 Gy.
Useful for
- Convert absorbed dose from rad to Gy
- Normalize mGy readings
- Compare SI and legacy dose documents
Before you use it
- Gy is absorbed energy and is not the same as equivalent/effective dose in Sv. Radiation or tissue weighting factors are not applied.
Standards and references
Frequently asked questions
Can I directly convert Gy to Sv?
No. Sievert quantities require context-specific radiation and/or tissue weighting.