Convert Nanogray to Sievert
Enter the number of nanograys that you want to convert to sieverts.
How to Convert Nanograys to Sieverts
The nanogray and sievert are both units of radiation dose. By definition, 1 sievert equals exactly 1000000000 nanograys. This means to convert nanograys to sieverts, you divide by 1000000000.
Formula
Step-by-Step Example
Convert 5 nGy to sieverts:
We need to convert nanograys to sieverts
Since 1 Sv = 1000000000 nGy, divide by 1000000000
5 ÷ 1000000000 = 5e-9
5 nGy = 5e-9 Sv
Nanogray to Sievert Conversion Table
Quick reference table for common nanogray to sievert conversions. Click any value for detailed calculation.
| Nanograys (nGy) | Sieverts (Sv) |
|---|---|
| 0.1 nGy | 1e-10 Sv |
| 0.5 nGy | 5e-10 Sv |
| 1 nGy | 1e-9 Sv |
| 2 nGy | 2e-9 Sv |
| 5 nGy | 5e-9 Sv |
| 10 nGy | 1e-8 Sv |
| 25 nGy | 2.5e-8 Sv |
| 50 nGy | 5e-8 Sv |
| 100 nGy | 1e-7 Sv |
About These Units
Nanogray (nGy)
A nanogray (nGy) equals 10⁻⁹ grays. Used in background radiation measurements and environmental monitoring. Natural background dose rate: 50-200 nGy/h from cosmic rays and terrestrial sources. Sensitive dosimeters measure in nGy.
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.
Frequently Asked Questions
How do I convert nanograys to sieverts?
To convert nanograys to sieverts, divide the value by 1000000000. For example, 10 nGy = 1e-8 Sv.
How many sieverts are in 1 nanogray?
1 nanogray equals 1e-9 sieverts.
What is the formula for nanograys to sieverts?
The formula is: Sv = nGy ÷ 1000000000.