Absorbed Radiation Dose conversion

Convert Gray to Nanogray

1 gray (Gy) equals 999,999,999.999999880791 nanogray (nGy). Enter any value below to convert from Gy to nGy.

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1 Gy = 999,999,999.9999998808 nGy

All Absorbed dose units

From 1 Gy
UnitValue
Nanogray nGy 999,999,999.9999998808
Microgray μGy 1,000,000
Milligray mGy 1,000
Gray Gy 1
Kilogray kGy 0.001
Rad rad 100
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Formula

Gy to nGy conversion formula

Use this relationship for a direct conversion:

nGy = Gy x 999,999,999.999999880791

Worked example

2 Gy = 1,999,999,999.9999997616 nGy.

This converter is for absorbed dose only; it does not calculate biological equivalent dose.

Quick reference

Gray to Nanogray table

Gray (Gy)Nanogray (nGy)
0.0110,000,000
0.1100,000,000
1999,999,999.9999998808
21,999,999,999.9999997616
55,000,000,000
1010,000,000,000
2525,000,000,000
5050,000,000,000
100100,000,000,000
1,000999,999,999,999.9998779297

From unit

About the gray

One joule of absorbed energy per kilogram.

Symbol: Gy

To unit

About the nanogray

One billionth of a gray.

Symbol: nGy

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Related conversions

Source

Conversion standard

Definitions are checked against BIPM SI Brochure: gray. Calculations use full internal precision before display rounding.

View the complete absorbed radiation dose converter

Questions

Gy to nGy FAQ

How do you convert gray to nanogray?

Use the formula nGy = Gy x 999,999,999.999999880791. 1 gray (Gy) equals 999,999,999.999999880791 nanogray (nGy).

Is the Gy to nGy conversion exact?

Both unit definitions use exact factors. Only the displayed decimal may be rounded.