About this radiation dose converter
Convert radiation dose units used in medical physics, radiotherapy, health physics, radiation protection, and educational calculations.
Gray and rad describe absorbed dose. Sievert describes equivalent or effective dose, so Gy-to-Sv conversions here assume a radiation weighting factor of 1, appropriate for X-rays, gamma rays, and beta particles.
Units covered
Absorbed dose
Gy, mGy, uGy, cGy, and rad for energy deposited per unit mass.
Equivalent dose
Sv, mSv, and uSv with weighting factor 1 assumptions clearly stated.
Clinical scale
cGy and Gy support radiotherapy and medical physics workflows.
How to use it
- Enter the dose value and choose its current unit.
- Select the target unit for your chart, calculation, or safety reference.
- Apply radiation weighting factors manually for alpha particles, neutrons, or mixed fields.