Convert Microsievert to Roentgen
Convert microsieverts to roentgens by entering a value below.
How to Convert Microsieverts to Roentgens
The microsievert and roentgen are both units of radiation dose. By definition, 1 roentgen equals exactly 8770 microsieverts. This means to convert microsieverts to roentgens, you divide by 8770.
Formula
Step-by-Step Example
Convert 5 μSv to roentgens:
We need to convert microsieverts to roentgens
Since 1 R = 8770 μSv, divide by 8770
5 ÷ 8770 = 0.0005701254
5 μSv = 0.0005701254 R
Microsievert to Roentgen Conversion Table
Quick reference table for common microsievert to roentgen conversions. Click any value for detailed calculation.
| Microsieverts (μSv) | Roentgens (R) |
|---|---|
| 0.1 μSv | 1.1402508552e-5 R |
| 0.5 μSv | 5.7012542759e-5 R |
| 1 μSv | 0.0001140251 R |
| 2 μSv | 0.0002280502 R |
| 5 μSv | 0.0005701254 R |
| 10 μSv | 0.0011402509 R |
| 25 μSv | 0.0028506271 R |
| 50 μSv | 0.0057012543 R |
| 100 μSv | 0.0114025086 R |
About These Units
Microsievert (μSv)
A microsievert (μSv) equals 0.001 mSv or 0.1 mrem. Common exposures: dental X-ray ~5 μSv, chest X-ray 20 μSv, transatlantic flight 40-80 μSv, banana (K-40) 0.1 μSv. Most radiation meters display μSv/h for environmental monitoring.
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.
Frequently Asked Questions
How do I convert microsieverts to roentgens?
To convert microsieverts to roentgens, divide the value by 8770. For example, 10 μSv = 0.0011402509 R.
How many roentgens are in 1 microsievert?
1 microsievert equals 0.0001140251 roentgens.
What is the formula for microsieverts to roentgens?
The formula is: R = μSv ÷ 8770.