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Millisievert to Gray
Convert Millisievert to Gray and get the exact value instantly.
About this conversion
To convert Millisievert to Gray, multiply the number of Millisievert by 0.001.
Radiation dose uses sieverts and grays in SI, while older rem and rad figures persist in some fields; note that sieverts weight for biological effect whereas grays measure absorbed energy.
Conversion table
| Millisievert (mSv) | Gray (Gy) |
|---|---|
| 1 mSv | 0.001 Gy |
| 2 mSv | 0.002 Gy |
| 5 mSv | 0.005 Gy |
| 10 mSv | 0.01 Gy |
| 100 mSv | 0.1 Gy |
How to use this converter
- Enter your Millisievert value
Type any number into the Millisievert field. It starts at 1 so you can read the rate straight away.
- Read the Gray result
The amount in Gray updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many Gray are in one Millisievert?
- One Millisievert equals 0.001 Gy. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Millisievert to Gray conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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