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Rad to Gray Converter

Convert Rads to Grays

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How to Convert Rads to Grays

Converting rads (rad) to grays (Gy) is a common conversion in radiation dosimetry. One rad is equal to 0.01 grays.

Formula

Grays = Rads ÷ 100

or

Gy = rad ÷ 100

Step-by-step process

  1. Take the measurement in rads
  2. Divide that number by 100
  3. The result is the equivalent amount in grays

Examples

  • 1 rad = 0.01 Gy
  • 10 rad = 0.1 Gy
  • 100 rad = 1 Gy

When to Convert Rads to Grays

This conversion is useful in radiation protection, medical imaging, and nuclear safety, where both rads and grays are used to quantify absorbed radiation dose.

Common Rads to Grays Conversions

Here is a table of common rad to gray conversions for quick reference:

Rads (rad) Grays (Gy) Rads (rad) Grays (Gy)
1 0.01 100 1
10 0.1 200 2
50 0.5 500 5
100 1 1,000 10

Frequently Asked Questions

What is a Rad (rad)?

The rad (radiation absorbed dose) is a non-SI unit of absorbed dose, commonly used in the United States. One rad is equal to 0.01 gray.

What is a Gray (Gy)?

The gray (Gy) is the SI unit of absorbed dose, defined as the absorption of one joule of radiation energy per kilogram of matter.