Convert millirems to rems
1 mrem = 0.001 rem — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
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Show this value in all 7 equivalent dose units
- Sieverts Sv 0.000 01
- Millisieverts mSv 0.01
- Microsieverts µSv 10
- Nanosieverts nSv 10 000
- Rems rem 0.001
- Millirems mrem 1
- Microrems µrem 1000
Every row is Millirem (mrem) converted through the sievert, in exact rational arithmetic.
How to convert millirems to rems
Multiply the number of millirems by 0.001 to get rems.
The exact factor is 0.001 — as a fraction, 1/1000.
Millirem: A chest X-ray is roughly 10 mrem, i.e. 0.1 mSv.
Rem: Röntgen equivalent man: 100 rem = 1 Sv. Still standard in US regulations.
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 |
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 |
Frequently asked
How many rems are in a millirem?
One millirem equals 0.001 rems (mrem → rem). That figure is exact, not rounded.
How do you convert millirems to rems?
Multiply the number of millirems by 0.001 to get rems.
What is 1 rem in millirems?
One rem is 1000 millirems.
What is 10 mrem in rem?
10 mrem = 0.01 rem.
What exactly is a millirem?
A chest X-ray is roughly 10 mrem, i.e. 0.1 mSv.
What exactly is a rem?
Röntgen equivalent man: 100 rem = 1 Sv. Still standard in US regulations.