Convert Kilogray to Gray

Enter the number of kilograys that you want to convert to grays.

1 kGy (kilograys) = 1000 Gy (grays)

How to Convert Kilograys to Grays

The kilogray and gray are both units of radiation dose. By definition, 1 kilogray equals exactly 1000 grays. This means to convert kilograys to grays, you multiply by 1000.

Formula

grays = kilograys × 1000

Step-by-Step Example

Convert 5 kGy to grays:

1
Convert 5 kGy to grays

We need to convert kilograys to grays

2
Apply the formula

Since 1 kGy = 1000 Gy, multiply by 1000

5 × 1000 = 5000

Answer

5 kGy = 5000 Gy

Kilogray to Gray Conversion Table

Quick reference table for common kilogray to gray conversions. Click any value for detailed calculation.

Kilograys (kGy) Grays (Gy)
0.1 kGy 100 Gy
0.5 kGy 500 Gy
1 kGy 1000 Gy
2 kGy 2000 Gy
5 kGy 5000 Gy
10 kGy 10000 Gy
25 kGy 25000 Gy
50 kGy 50000 Gy
100 kGy 100000 Gy

About These Units

Kilogray (kGy)

A kilogray (kGy) equals 1,000 grays. Used for industrial irradiation: food preservation 1-10 kGy, medical device sterilization 25-50 kGy, cross-linking polymers 50-200 kGy. Far above any biological survivability.

Gray (Gy)

The gray (Gy) is the SI unit of absorbed dose: energy deposited per unit mass (1 Gy = 1 J/kg). Named after Louis Harold Gray. For gamma/X-rays and beta particles, 1 Gy ≈ 1 Sv (quality factor Q=1). Radiation therapy total dose: 40-80 Gy.

Frequently Asked Questions

How do I convert kilograys to grays?

To convert kilograys to grays, multiply the value by 1000. For example, 10 kGy = 10000 Gy.

How many grays are in 1 kilogray?

1 kilogray equals 1000 grays.

What is the formula for kilograys to grays?

The formula is: Gy = kGy × 1000.