Zettagrays to exagrays converter
Convert zettagrays (ZGy) to exagrays (EGy). Calculate any value, follow the unit-factor steps and check a conversion table.
Updated · How we checkUse a decimal point, such as 2.5. Enter a value in ZGy; the result is in EGy.
Formula
Worked example
Convert 1 ZGy to EGy:
1 ZGy ≈ 1,000 EGy
Multiply your ZGy value by the factor above. The calculator uses the full conversion factor before rounding the displayed answer.
Zettagrays to exagrays table
Reference values rounded to 10 significant digits. Use the converter above for other amounts.
| Zettagrays (ZGy) | Exagrays (EGy) |
|---|---|
| 0.1 | ≈ 100 |
| 0.5 | ≈ 500 |
| 1 | ≈ 1,000 |
| 2 | ≈ 2,000 |
| 5 | ≈ 5,000 |
| 10 | ≈ 10,000 |
| 25 | ≈ 25,000 |
| 50 | ≈ 50,000 |
| 100 | ≈ 100,000 |
| 1000 | ≈ 1,000,000 |
What zettagrays measure
Zettagrays (ZGy) represent absorbed dose units. One unit equals 10^21 Gy. One gray is one joule of energy imparted per kilogram of matter.
Reading the result in exagrays
Exagrays (EGy) represent absorbed dose units. One unit equals 10^18 Gy. One gray is one joule of energy imparted per kilogram of matter.
Where this conversion helps
Express an already established absorbed dose in another unit scale. This is unit arithmetic only. Grays cannot be converted to sieverts without radiation and tissue weighting information.
How the scale changes
The input unit has a factor of 1e21 Gy; the output unit has a factor of 1e18 Gy. Multiply the entered number by the input factor, then divide by the output factor. The physical quantity stays the same while its numerical representation changes.
Reading very small or large results
Scientific notation keeps very small and large values readable: 2.5e-6 means 0.0000025. The converter calculates with 50 significant digits internally and displays up to 10. Exact unit definitions do not remove uncertainty from the original measurement.
References
Definitions and method references. Example rates and prices on this page are editable assumptions.