Convert Centigray to Kilorad

Type the number of centigrays that you wish to convert to kilorads.

1 cGy (centigrays) = 0.001 krad (kilorads)

How to Convert Centigrays to Kilorads

The centigray and kilorad are both units of radiation dose. By definition, 1 kilorad equals exactly 1000 centigrays. This means to convert centigrays to kilorads, you divide by 1000.

Formula

kilorads = centigrays ÷ 1000

Step-by-Step Example

Convert 5 cGy to kilorads:

1
Convert 5 cGy to kilorads

We need to convert centigrays to kilorads

2
Apply the formula

Since 1 krad = 1000 cGy, divide by 1000

5 ÷ 1000 = 0.005

Answer

5 cGy = 0.005 krad

Centigray to Kilorad Conversion Table

Quick reference table for common centigray to kilorad conversions. Click any value for detailed calculation.

Centigrays (cGy) Kilorads (krad)
0.1 cGy 0.0001 krad
0.5 cGy 0.0005 krad
1 cGy 0.001 krad
2 cGy 0.002 krad
5 cGy 0.005 krad
10 cGy 0.01 krad
25 cGy 0.025 krad
50 cGy 0.05 krad
100 cGy 0.1 krad

About These Units

Centigray (cGy)

A centigray (cGy) equals 0.01 gray and exactly equals 1 rad. Standard unit in radiation oncology. Typical fraction: 180-200 cGy/day. Total treatment: 4,000-8,000 cGy. Prostate: 7,000-8,000 cGy. Breast: 5,000-6,000 cGy.

Kilorad (krad)

A kilorad (krad) equals 1,000 rads or 10 grays. Used in electronics radiation hardening: commercial chips fail at 1-10 krad, radiation-hardened: 100+ krad, space-grade: 300+ krad total ionizing dose (TID) tolerance.

Frequently Asked Questions

How do I convert centigrays to kilorads?

To convert centigrays to kilorads, divide the value by 1000. For example, 10 cGy = 0.01 krad.

How many kilorads are in 1 centigray?

1 centigray equals 0.001 kilorads.

What is the formula for centigrays to kilorads?

The formula is: krad = cGy ÷ 1000.