megasievert to sievert
Convert megasievert (MSv) to sievert (Sv). Use an editable equivalent dose converter, conversion formula, and reference table.
1 MSv = 1,000,000 Sv
Conversion formula
One megasievert equals 1,000,000 sievert. Multiply your value in megasievert by this factor to get sievert. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 megasievert:5 × 1,000,000 = 5,000,000 Sv
Conversion table
| megasievert (MSv) | sievert (Sv) |
|---|---|
| 0.01 | 10,000 |
| 0.1 | 100,000 |
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 100 | 100,000,000 |
| 1000 | 1,000,000,000 |
About these measurements
Equivalent dose uses weighting to describe radiation-related biological effects.
The base reference used here is the sievert. One megasievert is 1,000,000 base units; one sievert is 1 base units.
Important distinctions
This converts an already specified quantity. It does not calculate a personal risk or treatment.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert MSv to Sv?
Multiply the quantity in MSv by 1,000,000. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the sievert to megasievert converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
