How to convert microsieverts to sieverts
Sv = µSv × 0.000001Multiply the value in microsieverts by 0.000001. To go the other way, multiply by 1,000,000 (or divide by 0.000001).
A microsievert is smaller than a sievert: it takes 1,000,000 microsieverts to make one sievert.
Worked examples
- 1 microsievert1 µSv × 0.000001 = 0.000001 Sv
- 5 microsieverts5 µSv × 0.000001 = 0.000005 Sv
- 10 microsieverts10 µSv × 0.000001 = 0.00001 Sv
- 20 microsieverts20 µSv × 0.000001 = 0.00002 Sv
- 100 microsieverts100 µSv × 0.000001 = 0.0001 Sv
Microsieverts to sieverts conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Microsieverts (µSv) | Sieverts (Sv) |
|---|---|
| 0.1 µSv | 1×10⁻⁷ Sv |
| 0.25 µSv | 2.5×10⁻⁷ Sv |
| 0.5 µSv | 5×10⁻⁷ Sv |
| 1 µSv | 0.000001 Sv |
| 2 µSv | 0.000002 Sv |
| 3 µSv | 0.000003 Sv |
| 4 µSv | 0.000004 Sv |
| 5 µSv | 0.000005 Sv |
| 6 µSv | 0.000006 Sv |
| 7 µSv | 0.000007 Sv |
| 8 µSv | 0.000008 Sv |
| 9 µSv | 0.000009 Sv |
| 10 µSv | 0.00001 Sv |
| Microsieverts (µSv) | Sieverts (Sv) |
|---|---|
| 12 µSv | 0.000012 Sv |
| 15 µSv | 0.000015 Sv |
| 20 µSv | 0.00002 Sv |
| 25 µSv | 0.000025 Sv |
| 30 µSv | 0.00003 Sv |
| 40 µSv | 0.00004 Sv |
| 50 µSv | 0.00005 Sv |
| 75 µSv | 0.000075 Sv |
| 100 µSv | 0.0001 Sv |
| 250 µSv | 0.00025 Sv |
| 500 µSv | 0.0005 Sv |
| 1,000 µSv | 0.001 Sv |
About the units
Microsievert (µSv)
A dental X-ray is around 5 µSv. One microsievert equals 0.000001 sieverts (Sv).
Sievert (Sv)
The sievert (Sv) is a unit of equivalent dose in the International System of Units (SI).
Frequently asked questions
How many sieverts are in one microsievert?
There are 0.000001 sieverts in one microsievert, and this value is exact by definition.
How do I convert microsieverts to sieverts?
Multiply the number of microsieverts by 0.000001. For example, 10 µSv × 0.000001 = 0.00001 Sv.
How many microsieverts are in one sievert?
One sievert equals 1,000,000 microsieverts. That is the reverse factor, 1 ÷ 0.000001.
What is 10 microsieverts in sieverts?
10 µSv = 0.00001 Sv.
Is this µSv to Sv converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.