Osmoles per liter to milliosmoles per liter
Type a value in Osm/L to get it in mOsm/L instantly.
150,000mOsm/L
That's 150× as concentrated as seawater — nothing on our list beats it. That is hypertonic: cells placed in it would shrink.
Convert the other way: mOsm/L to Osm/L
What it means
How concentrated is that?
Real salts do not dissociate perfectly, so measured osmolarity runs a few percent below the ideal figure. The osmotic coefficient of saline is about 0.93.
The math
How to convert Osm/L to mOsm/L
To convert osmoles per liter to milliosmoles per liter, multiply by 1,000.
Example: 150 Osm/L × 1,000 = 150,000 mOsm/L.
In the other direction, 1 mOsm/L = 0.001 Osm/L.
The table below is for Glucose (1 particle).
Every unit
Your osmolarity in every unit
Tables
Osm/L to mOsm/L conversion table
| Osm/L | mOsm/L |
|---|---|
| 10 Osm/L | 10,000 mOsm/L |
| 25 Osm/L | 25,000 mOsm/L |
| 50 Osm/L | 50,000 mOsm/L |
| 100 Osm/L | 100,000 mOsm/L |
| 150 Osm/L | 150,000 mOsm/L |
| 200 Osm/L | 200,000 mOsm/L |
| 280 Osm/L | 280,000 mOsm/L |
| 300 Osm/L | 300,000 mOsm/L |
| 500 Osm/L | 500,000 mOsm/L |
| 1,000 Osm/L | 1,000,000 mOsm/L |
| 2,000 Osm/L | 2,000,000 mOsm/L |
mOsm/L to Osm/L conversion table
| mOsm/L | Osm/L |
|---|---|
| 10 mOsm/L | 0.01 Osm/L |
| 25 mOsm/L | 0.025 Osm/L |
| 50 mOsm/L | 0.05 Osm/L |
| 100 mOsm/L | 0.1 Osm/L |
| 150 mOsm/L | 0.15 Osm/L |
| 200 mOsm/L | 0.2 Osm/L |
| 280 mOsm/L | 0.28 Osm/L |
| 300 mOsm/L | 0.3 Osm/L |
| 500 mOsm/L | 0.5 Osm/L |
| 1,000 mOsm/L | 1 Osm/L |
| 2,000 mOsm/L | 2 Osm/L |
Quick answers
Quick answers
- How many mOsm/L is 1 Osm/L?
- 1 Osm/L is 1,000 mOsm/L.
- How many mOsm/L is 10 Osm/L?
- 10 Osm/L is 10,000 mOsm/L.
- How many mOsm/L is 150 Osm/L?
- 150 Osm/L is 150,000 mOsm/L.
The units
About these units
Osmoles per liter (Osm/L)
A thousand milliosmoles, for concentrated solutions.
Milliosmoles per liter (mOsm/L)
The clinical standard. Plasma is about 290 of them.
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