Water Potential Calculator

Find water potential from solute and pressure potential.

Water potential (Ψ) (MPa) -0.5

Formula: Ψ = Ψs + Ψp

Step-by-step with your numbers:

1. Values used:

2. Solute potential (Ψs) = -0.7 MPa

3. Pressure potential (Ψp) = 0.2 MPa

5. Water potential (Ψ) = Solute potential (Ψs) + Pressure potential (Ψp) = -0.7 + 0.2 = -0.5MPa

Did we solve your problem today?

Water potential predicts which way water moves in plant cells (high to low).

The math behind it

Ψ = solute potential (Ψs, usually negative) + pressure potential (Ψp).

Ψs −0.7 + Ψp 0.2 → Ψ = −0.5 MPa.

Which way does water flow?

Toward more negative water potential.