Roentgen to Millicoulomb per Kilogram Conversion

Convert between Roentgen and Millicoulomb per Kilogram quickly and accurately.

R
mC/kg

How to Convert Roentgen to Millicoulomb per Kilogram

Conversion Formula

1 R = 0.258 mC/kg
1 mC/kg = 3.876 R

Example

Convert 15 R to mC/kg:

15 R = 15 × 0.258 mC/kg = 3.87 mC/kg

Unit Information

Learn about the radiation exposure units you're converting between

Roentgen

R

Definition

A unit of radiation exposure equal to 2.58 × 10^-4 coulomb per kilogram, originally defined as the quantity of X-rays that produces one electrostatic unit of charge in one cubic centimeter of air.

History/Origin

Named after Wilhelm Conrad Röntgen (1845-1923), the German physicist who discovered X-rays in 1895.

Current Use

Still widely used in medical imaging, radiation therapy, and radiation protection, particularly in the United States.

Multiplier

0

Offset

0

Millicoulomb per Kilogram

mC/kg

Definition

A unit of radiation exposure equal to 10^-3 coulomb per kilogram, used for moderate exposure levels.

History/Origin

Part of the SI metric system, where milli- is the prefix for 10^-3, used for small quantities.

Current Use

Used in radiation protection, medical physics, and radiation dosimetry applications.

Multiplier

0.001

Offset

0

Roentgen to Millicoulomb per Kilogram Conversion Table

Roentgen [R] Millicoulomb per Kilogram [mC/kg]
1 R 0.258 mC/kg
10 R 2.58 mC/kg
25 R 6.45 mC/kg
50 R 12.9 mC/kg
100 R 25.8 mC/kg
0 R 0E+0 mC/kg
-10 R -2.58 mC/kg
-40 R -10.32 mC/kg