Gigasievert is 1000000000 sievert units.
Gigasieverts to Decasieverts Converter — GSv to daSv
Convert Gigasievert (GSv) to Decasievert (daSv) using the exact conversion factor (1 gigasievert = 100,000,000 decasievert). See the formula, worked examples, and conversion table.
Gigasieverts to Decasieverts 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.
Decasievert is 10 sievert units.
Result = input x 1e+9 / 10.
Equivalent Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Gigasieverts to Decasieverts
Gigasievert and Decasievert 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: Gigasievert is 1000000000 sievert units, and decasievert is 10 sievert units.
Formula
decasieverts = gigasieverts × 100000000
This factor comes from each unit's defined relationship to the category's base unit: 1 gigasievert equals 1000000000 base units, and 1 decasievert equals 10 base units, so dividing one by the other gives the direct gigasievert-to-decasievert factor of 100000000.
Simple example
1 GSv × 100000000 = 100,000,000 daSv
1 gigasievert = 100,000,000 decasieverts.
Real-world example
10 GSv × 100000000 = 1,000,000,000 daSv
10 gigasieverts = 1,000,000,000 decasieverts.
Conversion table
| Gigasievert (GSv) | Decasievert (daSv) |
|---|---|
| 0.001 GSv | 100,000 daSv |
| 0.01 GSv | 1,000,000 daSv |
| 0.1 GSv | 10,000,000 daSv |
| 1 GSv | 100,000,000 daSv |
| 10 GSv | 1,000,000,000 daSv |
| 100 GSv | 10,000,000,000 daSv |
Reverse conversion: Decasievert to Gigasievert
1 daSv × 1e-8 = 1e-8 GSv
1 decasievert = 1e-8 gigasieverts.
gigasieverts = decasieverts × 1e-8
For a page dedicated to this direction, see Decasievert to Gigasievert.
Understanding the Gigasievert (GSv)
Gigasievert is 1000000000 sievert units.
Understanding the Decasievert (daSv)
Decasievert is 10 sievert units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decasieverts are in 1 gigasievert?
1 gigasievert equals 100,000,000 decasieverts, using the exact defined conversion factor rather than an estimate.
How do I convert gigasievert to decasievert?
Multiply the gigasievert value by 100000000. The converter above does this instantly to whatever precision you set.
How do I convert decasievert back to gigasievert?
Use the reverse factor: 1 decasievert equals 1e-8 gigasieverts. You can also use the swap control in the converter above to flip the direction instantly.
What is a gigasievert?
Gigasievert (GSv) is a unit of radiation.
What is a decasievert?
Decasievert (daSv) is a unit of radiation.
Is the gigasievert to decasievert conversion exact?
Yes. Both gigasievert and decasievert are defined by fixed standards rather than physical artifacts, so the factor of 100000000 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.