What is the formula for osmotic pressure?

Osmotic pressure can be calculated using π = Φ × i × C × R × T, where Φ is the osmotic coefficient, i is the number of ions, C is concentration, R is the gas constant and T is absolute temperature in Kelvin.

Can temperature be entered in Celsius?

Yes. Temperature can be entered in Celsius, Fahrenheit or Kelvin. The calculator automatically converts Celsius or Fahrenheit to Kelvin before calculating osmotic pressure.

Can temperature be entered in Fahrenheit?

Yes. Select Fahrenheit (°F) from the temperature unit selector. The calculator converts the value to Kelvin before using the osmotic pressure formula.

What unit is used for osmotic pressure?

The calculator can display osmotic pressure in atm, Pa, kPa, bar, mmHg, Torr or psi.

Which concentration units are supported?

Concentration can be entered in mol/L (M), mmol/L, mol/m³ or mmol/m³. The calculator converts the selected unit to mol/L before applying the van't Hoff equation.

Osmotic Pressure Calculator

Number of ions	van't Hoff ion factor (i)
Osmotic coefficient (Φ)
Concentration	Concentration is converted to mol/L for calculation.
Osmotic Pressure Unit	The calculated pressure is converted to the selected unit.
Temperature	Temperature is automatically converted to Kelvin for calculation.

Osmotic Pressure:

Step-by-Step Solution