Convert Picograys to Grays
Convert Picograys (pGy) to Grays (Gy) instantly and accurately.
Conversion Formula
Gy = pGy × 1.000000000e-12
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 Grays
The gray (Gy) is the SI coherent unit of absorbed radiation dose, defined as 1 joule of energy deposited per kilogram of matter. Named after Harold Gray (British radiobiologist, 1905-1965). Used globally in radiotherapy: curative tumour doses 40-80 Gy fractionated; total body irradiation before bone marrow transplant 12-14 Gy. 1 Gy = 1 J/kg = 100 rad.
Quick Reference Table
| Picograys (pGy) | Grays (Gy) |
|---|---|
| 1 pGy | 1 × 10-12 Gy |
| 2 pGy | 2 × 10-12 Gy |
| 5 pGy | 5 × 10-12 Gy |
| 10 pGy | 1 × 10-11 Gy |
| 25 pGy | 2.5 × 10-11 Gy |
| 50 pGy | 5 × 10-11 Gy |
| 100 pGy | 1 × 10-10 Gy |