Free Osmolarity Calculator
Calculate osmolarity from molarity and the van't Hoff factor (number of particles upon dissociation).
M
Osmolarity
0.3000 Osm/L
Milliosmolarity300.0 mOsm/L
Osmolarity vs Molarity
How to Calculate Osmolarity
Formula
Osmolarity = M × i
Where:
For NaCl, i = 2. For glucose, i = 1.
Example Calculation
Osmolarity of 0.15 M NaCl (i = 2).
- 01Osmolarity = M × i
- 02Osmolarity = 0.15 × 2
- 03Osmolarity = 0.3 Osm/L = 300 mOsm/L
Frequently Asked Questions
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Understanding Molarity
Learn what molarity is, how to calculate it, and why it matters in chemistry. Covers moles, liters, dilution, and step-by-step examples for preparing solutions.