Daily Unit Converter

Radiation Absorbed Dose converter

Gray to Rad Converter

Converts gray to rad for radiation absorbed dose.

From
To

Result

100 rad

1 Gy = 100 rad

Need the reverse conversion?Rad to Gray Converter

Conversion formula

rad = Gy × 100

1 gray equals 100 rad.

Gray to Rad table

Gray (Gy)Rad (rad)
0.011
0.110
1100
2200
3300
5500
101,000
202,000
505,000
10010,000
1,000100,000

What is Gray to Rad?

Converting grays to rads is common in medical physics and radiation therapy. One gray equals 100 rads. The formula is rad = Gy × 100.

About this conversion

This converter uses the displayed definition for gray and its recognized relationship to rad. Calculations retain full precision internally, and only the visible result is rounded. You can swap the conversion direction without changing the underlying standard.

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When to convert grays to rads

Use this conversion for radiotherapy dose planning, medical physics records, legacy equipment, and regulatory reporting.

Frequently asked questions

How do I convert grays to rads?+

Enter the grays value in the converter. The result uses the defined factor 100.000000000 and is rounded only for display.

Does the converter keep full precision?+

Yes. Calculations retain high precision throughout each step, while the visible result is rounded for readability.

How many rads is 1 Gy?+

1 Gy is 100 rads.

How many rads is 2 Gy?+

2 Gy is 200 rads.

What is a rad?+

A rad is the CGS unit of absorbed radiation dose, equal to 0.01 gray or 0.01 joule per kilogram.

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