Equilibrium Constant (Kp) Calculator

Equilibrium Constant Kp

Calculate the equilibrium constant Kp from partial pressures or Kc. Kp = Kc(RT)^Δn

Find *

Significant Figures

Balanced Equation *

Enter balanced equation. Use -> to separate reactants and products.

Reactants

Gas 1 Formula

Partial Pressure (atm)

Gas 2 Formula

Partial Pressure (atm)

Products

Gas 1 Formula

Partial Pressure (atm)

Gas 2 Formula

Partial Pressure (atm)

Gas Constant (R)

Show Steps

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Equilibrium Constant

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Equilibrium Visualization

Visual representation of equilibrium

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Calculation Breakdown

Step-by-step Kp calculation

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Equilibrium constant

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Δn

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Change in moles

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R × T

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Concentration constant

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Equation Details

Balanced equation and stoichiometry

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Kp Formulas

Key formulas and relationships

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Kp Tips

Understanding equilibrium constants

📊 Chemical Disclaimer: This calculator assumes ideal gas behavior. Kp and Kc relationships are valid for gas-phase reactions at equilibrium.