Convert Roentgen to Nanosievert
Type the number of roentgens that you wish to convert to nanosieverts.
How to Convert Roentgens to Nanosieverts
The roentgen and nanosievert are both units of radiation dose. By definition, 1 roentgen equals exactly 8770000 nanosieverts. This means to convert roentgens to nanosieverts, you multiply by 8770000.
Formula
Step-by-Step Example
Convert 5 R to nanosieverts:
We need to convert roentgens to nanosieverts
Since 1 R = 8770000 nSv, multiply by 8770000
5 × 8770000 = 43850000
5 R = 43850000 nSv
Roentgen to Nanosievert Conversion Table
Quick reference table for common roentgen to nanosievert conversions. Click any value for detailed calculation.
| Roentgens (R) | Nanosieverts (nSv) |
|---|---|
| 0.1 R | 877000 nSv |
| 0.5 R | 4385000 nSv |
| 1 R | 8770000 nSv |
| 2 R | 17540000 nSv |
| 5 R | 43850000 nSv |
| 10 R | 87700000 nSv |
| 25 R | 219250000 nSv |
| 50 R | 438500000 nSv |
| 100 R | 877000000 nSv |
About These Units
Roentgen (R)
The roentgen (R) measures ionization produced by X-rays or gamma rays in air. One roentgen produces 2.58×10⁻⁴ C/kg of ionization. Approximately: 1 R ≈ 8.77 mGy or 0.877 rad in soft tissue. Named after Wilhelm Röntgen, discoverer of X-rays.
Nanosievert (nSv)
A nanosievert (nSv) equals 10⁻⁹ sieverts or 0.001 μSv. Used for extremely low radiation levels in environmental monitoring, clean room specifications, and background radiation surveys. Natural background: ~200-300 nSv/h typical.
Frequently Asked Questions
How do I convert roentgens to nanosieverts?
To convert roentgens to nanosieverts, multiply the value by 8770000. For example, 10 R = 87700000 nSv.
How many nanosieverts are in 1 roentgen?
1 roentgen equals 8770000 nanosieverts.
What is the formula for roentgens to nanosieverts?
The formula is: nSv = R × 8770000.