Gray to Kilogray Conversion

Convert between Gray and Kilogray quickly and accurately.

Gy
kGy

How to Convert Gray to Kilogray

Conversion Formula

1 Gy = 0.001 kGy
1 kGy = 1000 Gy

Example

Convert 15 Gy to kGy:

15 Gy = 15 × 0.001 kGy = 0.015 kGy

Unit Information

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

Gray

Gy

Definition

The SI base unit of absorbed radiation dose equal to 100 rad, representing one joule of energy absorbed per kilogram of matter.

History/Origin

Named after Louis Harold Gray (1905-1965), the British physicist who made significant contributions to radiation dosimetry.

Current Use

Widely used in radiation therapy, medical physics, and radiation protection worldwide.

Multiplier

100

Offset

0

Kilogray

kGy

Definition

A unit of absorbed radiation dose equal to 10^3 gray, used for moderate absorbed dose measurements.

History/Origin

Part of the SI metric system, where kilo- is the prefix for 10^3, used for large quantities.

Current Use

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

Multiplier

100000

Offset

0

Gray to Kilogray Conversion Table

Gray [Gy] Kilogray [kGy]
1 Gy 0.001 kGy
10 Gy 0.01 kGy
25 Gy 0.025 kGy
50 Gy 0.05 kGy
100 Gy 0.1 kGy
0 Gy 0E+0 kGy
-10 Gy -0.01 kGy
-40 Gy -0.04 kGy