Roentgen to Millisievert Converter

How many Millisieverts are in 1 Roentgen?

One Roentgen equals 9.33 Millisieverts. You can also write this as 1 Roentgen = 9.33 Millisieverts. Use the calculator to convert Roentgen to Millisievert instantly.

Use this Roentgen to Millisievert converter to change a value from Roentgen into Millisievert. 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 Roentgen but a report, specification, or calculation requires Millisievert. 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.

Roentgen and Millisievert describe the same radiation exposure measurement in different units. Converting between them makes values easier to compare when different unit systems are used.

How to convert Roentgen to Millisievert (R to mSv)

To convert Roentgen to Millisievert, multiply by 9.33. The formula is Roentgen × 9.33 = Millisievert. See the example below.

1 Roentgen = 1 × 9.33 = 9.33 Millisieverts

Roentgen is a unit of measurement for ionizing radiation exposure. It is an obsolete unit which represents the amount of radiation required to create one electrostatic unit of charge of each polarity in one cubic centimeter of dry air. The symbol for Roentgen is R.

Millisievert is a unit of measurement for ionizing radiation exposure. Millisievert is a decimal fraction of radiation exposure unit sievert. One millisievert is equal to 0.001 sievert. The symbol for Millisievert is mSv.

How to Use Roentgen to Millisievert Converter

Select Roentgen from the first dropdown and enter the value you want to convert.
Choose Millisievert 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 Roentgen to Millisievert Conversion

Roentgen

Millisievert

9.33

Frequently asked questions about Roentgen to Millisievert conversion

What does the Roentgen to Millisievert 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 Roentgen to Millisievert converter?

Use it when you need to compare values, convert technical data, or switch between units used in different settings or systems.

Is this Roentgen to Millisievert 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.

Roentgen to Millisievert Conversion Table

Roentgen [R]	Millisievert [mSv]	Description
1 Roentgen	9.33 Millisievert	1 Roentgen = 9.33 Millisievert
2 Roentgen	18.66 Millisievert	2 Roentgen = 18.66 Millisievert
3 Roentgen	27.99 Millisievert	3 Roentgen = 27.99 Millisievert
4 Roentgen	37.32 Millisievert	4 Roentgen = 37.32 Millisievert
5 Roentgen	46.65 Millisievert	5 Roentgen = 46.65 Millisievert
6 Roentgen	55.98 Millisievert	6 Roentgen = 55.98 Millisievert
7 Roentgen	65.31 Millisievert	7 Roentgen = 65.31 Millisievert
8 Roentgen	74.64 Millisievert	8 Roentgen = 74.64 Millisievert
9 Roentgen	83.97 Millisievert	9 Roentgen = 83.97 Millisievert
10 Roentgen	93.3 Millisievert	10 Roentgen = 93.3 Millisievert
100 Roentgen	932.97 Millisievert	100 Roentgen = 932.97 Millisievert
1000 Roentgen	9329.66 Millisievert	1000 Roentgen = 9329.66 Millisievert

Roentgen to Other Units Conversion Table

Conversion	Description
1 Roentgen = 0.000258 Coulomb/Kilogram	1 Roentgen in Coulomb/Kilogram is equal to 0.000258
1 Roentgen = 2.58e-7 Coulomb/Gram	1 Roentgen in Coulomb/Gram is equal to 2.58e-7
1 Roentgen = 2.58e-10 Coulomb/Milligram	1 Roentgen in Coulomb/Milligram is equal to 2.58e-10
1 Roentgen = 2.58e-13 Coulomb/Microgram	1 Roentgen in Coulomb/Microgram is equal to 2.58e-13
1 Roentgen = 0.258 Millicoulomb/Kilogram	1 Roentgen in Millicoulomb/Kilogram is equal to 0.258
1 Roentgen = 0.000258 Millicoulomb/Gram	1 Roentgen in Millicoulomb/Gram is equal to 0.000258
1 Roentgen = 2.58e-7 Millicoulomb/Milligram	1 Roentgen in Millicoulomb/Milligram is equal to 2.58e-7
1 Roentgen = 2.58e-10 Millicoulomb/Microgram	1 Roentgen in Millicoulomb/Microgram is equal to 2.58e-10
1 Roentgen = 258 Microcoulomb/Kilogram	1 Roentgen in Microcoulomb/Kilogram is equal to 258
1 Roentgen = 0.258 Microcoulomb/Gram	1 Roentgen in Microcoulomb/Gram is equal to 0.258
1 Roentgen = 0.000258 Microcoulomb/Milligram	1 Roentgen in Microcoulomb/Milligram is equal to 0.000258
1 Roentgen = 2.58e-7 Microcoulomb/Microgram	1 Roentgen in Microcoulomb/Microgram is equal to 2.58e-7
1 Roentgen = 1 Tissue Roentgen	1 Roentgen in Tissue Roentgen is equal to 1
1 Roentgen = 1000 Milliroentgen	1 Roentgen in Milliroentgen is equal to 1000
1 Roentgen = 1000000 Microroentgen	1 Roentgen in Microroentgen is equal to 1000000
1 Roentgen = 1 Parker	1 Roentgen in Parker is equal to 1
1 Roentgen = 1 Rep	1 Roentgen in Rep is equal to 1
1 Roentgen = 0.0093296636656249 Sievert	1 Roentgen in Sievert is equal to 0.0093296636656249
1 Roentgen = 9.33 Millisievert	1 Roentgen in Millisievert is equal to 9.33
1 Roentgen = 9329.66 Microsievert	1 Roentgen in Microsievert is equal to 9329.66
1 Roentgen = 0.93296636656249 Rem	1 Roentgen in Rem is equal to 0.93296636656249
1 Roentgen = 932.97 Millirem	1 Roentgen in Millirem is equal to 932.97
1 Roentgen = 932966.37 Microrem	1 Roentgen in Microrem is equal to 932966.37

Disclaimer | TOS | About | Privacy Policy