Exagray is 1000000000000000000 gray units.
Exagrays to Teragrays Converter — EGy to TGy
Convert Exagray (EGy) to Teragray (TGy) using the exact conversion factor (1 exagray = 1,000,000 teragray). See the formula, worked examples, and conversion table.
Exagrays to Teragrays converter
Converter
Radiation Converter
Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
Context values
Some unit families need one extra value for a physically accurate result.
Teragray is 1000000000000 gray units.
Result = input x 1e+18 / 1e+12.
Absorbed Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Exagrays to Teragrays
Exagray and Teragray both belong to the radiation-measurement family, though radiation quantities fall into genuinely distinct categories: absorbed dose (gray, rad) measures energy deposited in matter, equivalent dose (sievert, rem) weights that for biological harm, and activity (becquerel, curie) measures how often a radioactive source decays — this page only converts between units of the same kind. Specifically: Exagray is 1000000000000000000 gray units, and teragray is 1000000000000 gray units.
Formula
teragrays = exagrays × 1000000
This factor comes from each unit's defined relationship to the category's base unit: 1 exagray equals 1e+18 base units, and 1 teragray equals 1e+12 base units, so dividing one by the other gives the direct exagray-to-teragray factor of 1000000.
Simple example
1 EGy × 1000000 = 1,000,000 TGy
1 exagray = 1,000,000 teragrays.
Real-world example
10 EGy × 1000000 = 10,000,000 TGy
10 exagrays = 10,000,000 teragrays.
Conversion table
| Exagray (EGy) | Teragray (TGy) |
|---|---|
| 0.001 EGy | 1,000 TGy |
| 0.01 EGy | 10,000 TGy |
| 0.1 EGy | 100,000 TGy |
| 1 EGy | 1,000,000 TGy |
| 10 EGy | 10,000,000 TGy |
| 100 EGy | 100,000,000 TGy |
Reverse conversion: Teragray to Exagray
1 TGy × 0.000001 = 0.000001 EGy
1 teragray = 0.000001 exagrays.
exagrays = teragrays × 0.000001
For a page dedicated to this direction, see Teragray to Exagray.
Understanding the Exagray (EGy)
Exagray is 1000000000000000000 gray units.
Understanding the Teragray (TGy)
Teragray is 1000000000000 gray units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many teragrays are in 1 exagray?
1 exagray equals 1,000,000 teragrays, using the exact defined conversion factor rather than an estimate.
How do I convert exagray to teragray?
Multiply the exagray value by 1000000. The converter above does this instantly to whatever precision you set.
How do I convert teragray back to exagray?
Use the reverse factor: 1 teragray equals 0.000001 exagrays. You can also use the swap control in the converter above to flip the direction instantly.
What is a exagray?
Exagray (EGy) is a unit of radiation.
What is a teragray?
Teragray (TGy) is a unit of radiation.
Is the exagray to teragray conversion exact?
Yes. Both exagray and teragray are defined by fixed standards rather than physical artifacts, so the factor of 1000000 used above is exact to as many digits as you choose to display.
What's the difference between absorbed dose, equivalent dose, and activity?
Absorbed dose (gray, rad) measures the energy radiation deposits in matter. Equivalent dose (sievert, rem) adjusts that figure for how harmful different types of radiation are to biological tissue. Activity (becquerel, curie) measures how often a radioactive source decays, independent of how much dose a person actually receives from it.