Convert Sievert to Rad
Convert sieverts to rads by entering a value below.
How to Convert Sieverts to Rads
The sievert and rad are both units of radiation dose. By definition, 1 sievert equals exactly 100 rads. This means to convert sieverts to rads, you multiply by 100.
Formula
Step-by-Step Example
Convert 5 Sv to rads:
We need to convert sieverts to rads
Since 1 Sv = 100 rad, multiply by 100
5 × 100 = 500
5 Sv = 500 rad
Sievert to Rad Conversion Table
Quick reference table for common sievert to rad conversions. Click any value for detailed calculation.
| Sieverts (Sv) | Rads (rad) |
|---|---|
| 1 Sv | 100 rad |
| 2 Sv | 200 rad |
| 5 Sv | 500 rad |
| 10 Sv | 1000 rad |
| 15 Sv | 1500 rad |
| 20 Sv | 2000 rad |
| 25 Sv | 2500 rad |
| 50 Sv | 5000 rad |
| 100 Sv | 10000 rad |
About These Units
Sievert (Sv)
The sievert (Sv) is the SI unit of equivalent dose, measuring biological effect of radiation exposure. Accounts for radiation type via quality factors. 1 Sv = significant health risk, 4-5 Sv = 50% fatality (LD50). Acute exposure above 0.5 Sv causes radiation sickness.
Rad (rad)
The rad (Radiation Absorbed Dose) is the traditional unit of absorbed dose. One gray = 100 rads exactly. One rad = 100 ergs/gram = 0.01 J/kg. Still used in US medical and nuclear industries. One rad = one centigray = one rem for gamma/X-rays.
Frequently Asked Questions
How do I convert sieverts to rads?
To convert sieverts to rads, multiply the value by 100. For example, 10 Sv = 1000 rad.
How many rads are in 1 sievert?
1 sievert equals 100 rads.
What is the formula for sieverts to rads?
The formula is: rad = Sv × 100.