Convert Kiloroentgens to Microroentgens

Convert Kiloroentgens (kR) to Microroentgens (µR) instantly and accurately.

Kiloroentgens (kR)
Microroentgens (µR)

Conversion Formula

µR = kR × 1000000000

About Kiloroentgens

The kiloroentgen (kR) equals 0.258 C/kg. Used in radiation hardness testing of electronics and legacy nuclear weapons effects literature; total ionising exposure inside nuclear facilities during design-basis accident scenarios is cited in kR; some older radiation therapy machine output specifications use kR/min. 1 kR = 0.258 C/kg = 10³ R.

About Microroentgens

The microroentgen (µR) equals 2.58 × 10⁻¹⁰ C/kg. Standard unit for very low environmental gamma dose rates in legacy US instrumentation: airborne radiological surveys over background areas report µR/h; EPA environmental monitoring network stations historically logged µR/h for outdoor gamma levels. 1 µR = 2.58 × 10⁻¹⁰ C/kg.

Quick Reference Table

Kiloroentgens (kR)Microroentgens (µR)
1 kR1 × 109 µR
2 kR2 × 109 µR
5 kR5 × 109 µR
10 kR1 × 1010 µR
25 kR2.5 × 1010 µR
50 kR5 × 1010 µR
100 kR1 × 1011 µR

→ Full Exposure Converter