Yoctosievert is 1e-24 sievert units.
Yoctosieverts to Quectosieverts Converter — ySv to qSv
Convert Yoctosievert (ySv) to Quectosievert (qSv) using the exact conversion factor (1 yoctosievert = 1,000,000 quectosievert). See the formula, worked examples, and conversion table.
Yoctosieverts to Quectosieverts 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.
Quectosievert is 1e-30 sievert units.
Result = input x 1e-24 / 1e-30.
Equivalent Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Yoctosieverts to Quectosieverts
Yoctosievert and Quectosievert 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: Yoctosievert is 1e-24 sievert units, and quectosievert is 1e-30 sievert units.
Formula
quectosieverts = yoctosieverts × 1000000
This factor comes from each unit's defined relationship to the category's base unit: 1 yoctosievert equals 1e-24 base units, and 1 quectosievert equals 1e-30 base units, so dividing one by the other gives the direct yoctosievert-to-quectosievert factor of 1000000.
Simple example
1 ySv × 1000000 = 1,000,000 qSv
1 yoctosievert = 1,000,000 quectosieverts.
Real-world example
10 ySv × 1000000 = 10,000,000 qSv
10 yoctosieverts = 10,000,000 quectosieverts.
Conversion table
| Yoctosievert (ySv) | Quectosievert (qSv) |
|---|---|
| 0.001 ySv | 1,000 qSv |
| 0.01 ySv | 10,000 qSv |
| 0.1 ySv | 100,000 qSv |
| 1 ySv | 1,000,000 qSv |
| 10 ySv | 10,000,000 qSv |
| 100 ySv | 100,000,000 qSv |
Reverse conversion: Quectosievert to Yoctosievert
1 qSv × 0.000001 = 0.000001 ySv
1 quectosievert = 0.000001 yoctosieverts.
yoctosieverts = quectosieverts × 0.000001
For a page dedicated to this direction, see Quectosievert to Yoctosievert.
Understanding the Yoctosievert (ySv)
Yoctosievert is 1e-24 sievert units.
Understanding the Quectosievert (qSv)
Quectosievert is 1e-30 sievert units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many quectosieverts are in 1 yoctosievert?
1 yoctosievert equals 1,000,000 quectosieverts, using the exact defined conversion factor rather than an estimate.
How do I convert yoctosievert to quectosievert?
Multiply the yoctosievert value by 1000000. The converter above does this instantly to whatever precision you set.
How do I convert quectosievert back to yoctosievert?
Use the reverse factor: 1 quectosievert equals 0.000001 yoctosieverts. You can also use the swap control in the converter above to flip the direction instantly.
What is a yoctosievert?
Yoctosievert (ySv) is a unit of radiation.
What is a quectosievert?
Quectosievert (qSv) is a unit of radiation.
Is the yoctosievert to quectosievert conversion exact?
Yes. Both yoctosievert and quectosievert 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.