Demand, Supply & Elasticity Calculators Economics Calculators Demand Function Evaluator a (Intercept) b (Slope) Price (P) Calculate Price Elasticity of Demand (PED) ΔQ (Change in Quantity) ΔP (Change in Price) Q (Original Quantity) P (Original Price) Calculate Income Elasticity of Demand (YED) ΔQ (Change in Quantity) ΔY (Change in Income) Q (Original Quantity) Y (Original Income) Calculate Cross-Price Elasticity of Demand (XED) ΔQx (Change in Good X) ΔPy (Change in Good Y Price) Qx (Original Quantity of X) Py (Original Price of Y) Calculate Supply Function Evaluator c (Intercept) d (Slope) Price (P) Calculate Price Elasticity of Supply (PES) ΔQs ΔP Qs P Calculate Consumer Surplus Max Price Willing (Pmax) Market Price (P*) Quantity (Q*) Calculate Producer Surplus Market Price (P*) Min Price Acceptable (Pmin) Quantity (Q*) Calculate Market Equilibrium Solver Demand: Qd = a – bP a b Supply: Qs = c + dP c d Solve Shortage / Surplus Quantity Demanded Quantity Supplied Check Demand Curve Shift Simulator Original Qd Shift Factor (%) Simulate Own-price Elasticity (Discrete Data) Q1 Q2 P1 P2 Calculate Inverse Demand / Supply Converter Equation (Q = mP + c) Convert Arc Elasticity Calculator Q1 Q2 P1 P2 Calculate Marshallian Demand (Cobb–Douglas) Income (M) Price of Good X (Px) Alpha (share for X) Calculate