Rad to Millirad Conversion

Convert between Rad and Millirad quickly and accurately.

rd
mrd

How to Convert Rad to Millirad

Conversion Formula

1 rd = 1000 mrd
1 mrd = 0.001 rd

Example

Convert 15 rd to mrd:

15 rd = 15 × 1000 mrd = 15000 mrd

Unit Information

Learn about the radiation absorbed dose units you're converting between

Rad

rd

Definition

A unit of absorbed radiation dose equal to 0.01 gray, representing the amount of energy deposited in matter by ionizing radiation.

History/Origin

Acronym for "radiation absorbed dose", introduced in the 1950s for measuring radiation absorbed dose in biological tissue.

Current Use

Widely used in radiation therapy, medical physics, and radiation protection, particularly in the United States.

Multiplier

1

Offset

0

Millirad

mrd

Definition

A unit of absorbed radiation dose equal to 0.001 rad, used for small absorbed dose measurements.

History/Origin

Derived from the rad unit with the milli- prefix, used for small absorbed dose measurements.

Current Use

Used in radiation protection, environmental monitoring, and low-level radiation measurements.

Multiplier

0.001

Offset

0

Rad to Millirad Conversion Table

Rad [rd] Millirad [mrd]
1 rd 1000 mrd
10 rd 10000 mrd
25 rd 25000 mrd
50 rd 50000 mrd
100 rd 100000 mrd
0 rd 0E+0 mrd
-10 rd -10000 mrd
-40 rd -40000 mrd