Gray to Rad Converter

Convert → Rad to Gray
1 Gray = 100 Rads

How many Rads are in 1 Gray?

One Gray equals 100 Rads. You can also write this as 1 Gray = 100 Rads. Use the calculator to convert Gray to Rad instantly.
Use this Gray to Rad converter to change a value from Gray into Rad. Enter the measurement, review the result, and use the conversion when comparing values or checking a formula.
This conversion is useful when a measurement is recorded in Gray but a report, specification, or calculation requires Rad. The page includes the unit definitions, a worked example, and a conversion table for related units.
Use the result as a reference and check the displayed precision before copying it into technical or scientific work. The last digits may be rounded for readability.
Gray and Rad describe the same radiation absorbed dose measurement in different units. Converting between them makes values easier to compare when different unit systems are used.

How to convert Gray to Rad (Gy to rd)

To convert Gray to Rad, multiply by 100. The formula is Gray × 100 = Rad. See the example below.

1 Gray = 1 × 100 = 100 Rads

Gray is a unit of measurement for absorbed ionizing radiation dose. It describes absorption of one joule of energy in the form of ionizing radiation by one kilogram of tissue. The symbol for Gray is Gy.
Rad is a unit of measurement for absorbed ionizing radiation dose. It represents the dose causing 100 ergs of energy to be absorbed by one gram of matter. The symbol for Rad is rd.

How to Use Gray to Rad Converter

  • Select Gray from the first dropdown and enter the value you want to convert.
  • Choose Rad in the second dropdown to set the target unit.
  • Review the converted value in the output field.
  • Check the displayed precision before using the result in another calculation.
For another result, change the input value or either selected unit. The conversion uses the unit definitions in the calculator and formats the result for display.

Example of Gray to Rad Conversion

Gray

1

Rad

100

Frequently asked questions about Gray to Rad conversion

What does the Gray to Rad conversion show?
It shows the equivalent value of one unit in another unit, making it easier to compare measurements and check calculations across different scales.
When should I use a Gray to Rad converter?
Use it when you need to compare values, convert technical data, or switch between units used in different settings or systems.
Is this Gray to Rad calculator accurate?
It applies the conversion relationship used by the calculator and formats the result for display. Verify the shown precision when the value is used in technical or scientific work.

Gray to Rad Conversion Table

Gray [Gy]Rad [rd]Description
1 Gray100 Rad1 Gray = 100 Rad
2 Gray200 Rad2 Gray = 200 Rad
3 Gray300 Rad3 Gray = 300 Rad
4 Gray400 Rad4 Gray = 400 Rad
5 Gray500 Rad5 Gray = 500 Rad
6 Gray600 Rad6 Gray = 600 Rad
7 Gray700 Rad7 Gray = 700 Rad
8 Gray800 Rad8 Gray = 800 Rad
9 Gray900 Rad9 Gray = 900 Rad
10 Gray1000 Rad10 Gray = 1000 Rad
100 Gray10000 Rad100 Gray = 10000 Rad
1000 Gray100000 Rad1000 Gray = 100000 Rad

Gray to Other Units Conversion Table

ConversionDescription
1 Gray = 100 Rad1 Gray in Rad is equal to 100
1 Gray = 100000 Millirad1 Gray in Millirad is equal to 100000
1 Gray = 100000000 Microrad1 Gray in Microrad is equal to 100000000
1 Gray = 1 Joule/Kilogram1 Gray in Joule/Kilogram is equal to 1
1 Gray = 0.001 Joule/Gram1 Gray in Joule/Gram is equal to 0.001
1 Gray = 0.000001 Joule/Milligram1 Gray in Joule/Milligram is equal to 0.000001
1 Gray = 0.00001 Joule/Centigram1 Gray in Joule/Centigram is equal to 0.00001
1 Gray = 1e-18 Exagray1 Gray in Exagray is equal to 1e-18
1 Gray = 1e-15 Petagray1 Gray in Petagray is equal to 1e-15
1 Gray = 1e-12 Teragray1 Gray in Teragray is equal to 1e-12
1 Gray = 1e-9 Gigagray1 Gray in Gigagray is equal to 1e-9
1 Gray = 0.000001 Megagray1 Gray in Megagray is equal to 0.000001
1 Gray = 0.001 Kilogray1 Gray in Kilogray is equal to 0.001
1 Gray = 0.01 Hectogray1 Gray in Hectogray is equal to 0.01
1 Gray = 0.1 Dekagray1 Gray in Dekagray is equal to 0.1
1 Gray = 10 Decigray1 Gray in Decigray is equal to 10
1 Gray = 100 Centigray1 Gray in Centigray is equal to 100
1 Gray = 1000 Milligray1 Gray in Milligray is equal to 1000
1 Gray = 1000000 Microgray1 Gray in Microgray is equal to 1000000
1 Gray = 1000000000 Nanogray1 Gray in Nanogray is equal to 1000000000
1 Gray = 1000000000000 Picogray1 Gray in Picogray is equal to 1000000000000
1 Gray = 1000000000000000 Femtogray1 Gray in Femtogray is equal to 1000000000000000
1 Gray = 1000000000000000000 Attogray1 Gray in Attogray is equal to 1000000000000000000
1 Gray = 1 Sievert1 Gray in Sievert is equal to 1
1 Gray = 1000 Milisievert1 Gray in Milisievert is equal to 1000
1 Gray = 1000000 Microsievert1 Gray in Microsievert is equal to 1000000

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