femtogray to attogray
Convert femtogray (fGy) to attogray (aGy). Use an editable absorbed dose converter, conversion formula, and reference table.
1 fGy = 1,000 aGy
Conversion formula
One femtogray equals 1,000 attogray. Multiply your value in femtogray by this factor to get attogray. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 femtogray:5 × 1,000 = 5,000 aGy
Conversion table
| femtogray (fGy) | attogray (aGy) |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 1000 | 1,000,000 |
About these measurements
Absorbed dose measures energy deposited per unit mass.
The base reference used here is the gray. One femtogray is 1e-15 base units; one attogray is 1e-18 base units.
Important distinctions
Physical unit conversion only. Biological effect requires additional information and professional assessment.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert fGy to aGy?
Multiply the quantity in fGy by 1,000. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the attogray to femtogray converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
