Petagrays: conversions & definition
Petagrays (PGy) represent absorbed dose units. One unit equals 10^15 Gy. One gray is one joule of energy imparted per kilogram of matter.
Choose the unit you need
Each row converts one PGy. Open a converter to enter any value and see its formula, worked example and reference table. Results below are rounded to 10 significant digits.
| Convert to | Equivalent value | Calculator |
|---|---|---|
| Grays (Gy) | ≈ 1e+15 | Convert PGy to Gy |
| Milligrays (mGy) | ≈ 1e+18 | Convert PGy to mGy |
| Kilograys (kGy) | ≈ 1e+12 | Convert PGy to kGy |
| Micrograys (µGy) | ≈ 1e+21 | Convert PGy to µGy |
| Megagrays (MGy) | ≈ 1,000,000,000 | Convert PGy to MGy |
| Nanograys (nGy) | ≈ 1e+24 | Convert PGy to nGy |
| Gigagrays (GGy) | ≈ 1,000,000 | Convert PGy to GGy |
| Centigrays (cGy) | ≈ 1e+17 | Convert PGy to cGy |
| Decigrays (dGy) | ≈ 1e+16 | Convert PGy to dGy |
| Hectograys (hGy) | ≈ 1e+13 | Convert PGy to hGy |
| Decagrays (daGy) | ≈ 1e+14 | Convert PGy to daGy |
| Picograys (pGy) | ≈ 1e+27 | Convert PGy to pGy |
| Teragrays (TGy) | ≈ 1,000 | Convert PGy to TGy |
| Femtograys (fGy) | ≈ 1e+30 | Convert PGy to fGy |
| Attograys (aGy) | ≈ 1e+33 | Convert PGy to aGy |
| Exagrays (EGy) | ≈ 0.001 | Convert PGy to EGy |
| Zeptograys (zGy) | ≈ 1e+36 | Convert PGy to zGy |
| Zettagrays (ZGy) | ≈ 0.000001 | Convert PGy to ZGy |
| Yoctograys (yGy) | ≈ 1e+39 | Convert PGy to yGy |
Keep the quantity consistent
Choose units that represent the same quantity and preserve the measurement conditions. A scale conversion changes the number and unit together; it does not change the physical amount or improve the accuracy of your measurement.
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