Convert rems to millirems
1 rem = 1000 mrem — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
More converter tools
Readable results
Ranges, ± tolerances, feet/inches and clock durations work in the value field.
Unit picker
Export this result
Show this value in all 7 equivalent dose units
- Sieverts Sv 0.01
- Millisieverts mSv 10
- Microsieverts µSv 10 000
- Nanosieverts nSv 10 000 000
- Rems rem 1
- Millirems mrem 1000
- Microrems µrem 1 000 000
Every row is Rem converted through the sievert, in exact rational arithmetic.
How to convert rems to millirems
Multiply the number of rems by 1000 to get millirems.
The exact factor is 1000 .
Rem: Röntgen equivalent man: 100 rem = 1 Sv. Still standard in US regulations.
Millirem: A chest X-ray is roughly 10 mrem, i.e. 0.1 mSv.
Rem to Millirem conversion table
| Rems (rem) | Millirems (mrem) |
|---|---|
| 1 rem | 1000 |
| 2 rem | 2000 |
| 3 rem | 3000 |
| 5 rem | 5000 |
| 10 rem | 10 000 |
| 20 rem | 20 000 |
| 25 rem | 25 000 |
| 50 rem | 50 000 |
| 100 rem | 100 000 |
| 250 rem | 250 000 |
| 500 rem | 500 000 |
| 1000 rem | 1 000 000 |
Millirem to Rem conversion table
| Millirems (mrem) | Rems (rem) |
|---|---|
| 1 mrem | 0.001 |
| 2 mrem | 0.002 |
| 3 mrem | 0.003 |
| 5 mrem | 0.005 |
| 10 mrem | 0.01 |
| 20 mrem | 0.02 |
| 25 mrem | 0.025 |
| 50 mrem | 0.05 |
| 100 mrem | 0.1 |
| 250 mrem | 0.25 |
| 500 mrem | 0.5 |
| 1000 mrem | 1 |
Frequently asked
How many millirems are in a rem?
One rem equals 1000 millirems (rem → mrem). That figure is exact, not rounded.
How do you convert rems to millirems?
Multiply the number of rems by 1000 to get millirems.
What is 1 mrem in rems?
One millirem is 0.001 rems.
What is 10 rem in mrem?
10 rem = 10 000 mrem.
What exactly is a rem?
Röntgen equivalent man: 100 rem = 1 Sv. Still standard in US regulations.
What exactly is a millirem?
A chest X-ray is roughly 10 mrem, i.e. 0.1 mSv.