Hectogray to Attogray Conversion

Convert between Hectogray and Attogray quickly and accurately.

hGy
aGy

How to Convert Hectogray to Attogray

Conversion Formula

1 hGy = 1E+20 aGy
1 aGy = 1E-20 hGy

Example

Convert 15 hGy to aGy:

15 hGy = 15 × 1E+20 aGy = 2E+21 aGy

Unit Information

Learn about the radiation absorbed dose units you're converting between

Hectogray

hGy

Definition

A unit of absorbed radiation dose equal to 10^2 gray, used for moderate absorbed dose measurements.

History/Origin

Part of the SI metric system, where hecto- is the prefix for 10^2, used for moderate quantities.

Current Use

Used in radiation therapy, medical physics, and moderate-dose radiation applications.

Multiplier

10000

Offset

0

Attogray

aGy

Definition

A unit of absorbed radiation dose equal to 10^-18 gray, used for ultra-small absorbed dose measurements.

History/Origin

Part of the SI metric system, where atto- is the prefix for 10^-18, used for ultra-small quantities.

Current Use

Used in radiation protection, environmental monitoring, and ultra-small-dose radiation measurements.

Multiplier

1E-16

Offset

0

Hectogray to Attogray Conversion Table

Hectogray [hGy] Attogray [aGy]
1 hGy 1E+20 aGy
10 hGy 1E+21 aGy
25 hGy 2E+21 aGy
50 hGy 5E+21 aGy
100 hGy 1E+22 aGy
0 hGy 0E+0 aGy
-10 hGy -1E+21 aGy
-40 hGy -4E+21 aGy