Convert Picograys to Rads
Convert Picograys (pGy) to Rads (rad) instantly and accurately.
Conversion Formula
rad = pGy × 1.000000000e-10
About Picograys
The picogray (pGy) equals 10⁻¹² Gy. Microdosimetry simulations of α-particle traversals through single cells report mean specific energies in the pGy range; computed dose kernels for ²¹⁰At and !21³Bi targeted alpha therapy on individual cell clusters are expressed in pGy. 1 pGy = 10⁻¹² Gy = 10⁻³ nGy.
About Rads
The rad (rad) equals exactly 0.01 Gy = 100 erg/g. The pre-SI unit of absorbed dose, defined by the ICRU in 1953, still widely used in the US in radiation therapy (cGy = rad numerically), radiation biology, and NRC regulations. Whole-body 50% lethal dose (LD50) for humans ~350-450 rad. 1 rad = 0.01 Gy = 1 cGy.
Quick Reference Table
| Picograys (pGy) | Rads (rad) |
|---|---|
| 1 pGy | 1 × 10-10 rad |
| 2 pGy | 2 × 10-10 rad |
| 5 pGy | 5 × 10-10 rad |
| 10 pGy | 1 × 10-9 rad |
| 25 pGy | 2.5 × 10-9 rad |
| 50 pGy | 5 × 10-9 rad |
| 100 pGy | 1 × 10-8 rad |