Nanosievert is 1e-9 sievert units.
Nanosieverts to Decisieverts Converter — nSv to dSv
Convert Nanosievert (nSv) to Decisievert (dSv) using the exact conversion factor (1 nanosievert = 1e-8 decisievert). See the formula, worked examples, and conversion table.
Nanosieverts to Decisieverts 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.
Decisievert is 0.1 sievert units.
Result = input x 1e-9 / 0.1.
Equivalent Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Nanosieverts to Decisieverts
Nanosievert and Decisievert 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: Nanosievert is 1e-9 sievert units, and decisievert is 0.1 sievert units.
Formula
decisieverts = nanosieverts × 1e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 nanosievert equals 1e-9 base units, and 1 decisievert equals 0.1 base units, so dividing one by the other gives the direct nanosievert-to-decisievert factor of 1e-8.
Simple example
1 nSv × 1e-8 = 1e-8 dSv
1 nanosievert = 1e-8 decisieverts.
Real-world example
10 nSv × 1e-8 = 1e-7 dSv
10 nanosieverts = 1e-7 decisieverts.
Conversion table
| Nanosievert (nSv) | Decisievert (dSv) |
|---|---|
| 0.001 nSv | 1e-11 dSv |
| 0.01 nSv | 1e-10 dSv |
| 0.1 nSv | 1e-9 dSv |
| 1 nSv | 1e-8 dSv |
| 10 nSv | 1e-7 dSv |
| 100 nSv | 0.000001 dSv |
Reverse conversion: Decisievert to Nanosievert
1e-8 dSv × 100000000 = 1 nSv
1e-8 decisieverts = 1 nanosievert.
nanosieverts = decisieverts × 100000000
For a page dedicated to this direction, see Decisievert to Nanosievert.
Understanding the Nanosievert (nSv)
Nanosievert is 1e-9 sievert units.
Understanding the Decisievert (dSv)
Decisievert is 0.1 sievert units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decisieverts are in 1 nanosievert?
1 nanosievert equals 1e-8 decisieverts, using the exact defined conversion factor rather than an estimate.
How do I convert nanosievert to decisievert?
Multiply the nanosievert value by 1e-8. The converter above does this instantly to whatever precision you set.
How do I convert decisievert back to nanosievert?
Use the reverse factor: 1 decisievert equals 100,000,000 nanosieverts. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanosievert?
Nanosievert (nSv) is a unit of radiation.
What is a decisievert?
Decisievert (dSv) is a unit of radiation.
Is the nanosievert to decisievert conversion exact?
Yes. Both nanosievert and decisievert are defined by fixed standards rather than physical artifacts, so the factor of 1e-8 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.