Marginal Cost Calculator

Calculate Marginal Cost (MC = ΔTC / ΔQ) and Average Total Cost. Optimize production batches and unit economics.

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How to Use Marginal Cost Calculator

  1. Enter Initial Total Cost (TC1) and New Total Cost (TC2).
  2. Enter Initial Output (Q1) and New Output (Q2).
  3. Optionally enter Fixed Costs to compute Average Fixed Cost (AFC) and Average Variable Cost (AVC).

Cost Curve Theory

Firms maximize profits where Marginal Revenue (MR) equals Marginal Cost (MC).

Frequently Asked Questions

What is Marginal Cost?
Marginal Cost is the cost added by producing one additional unit of a product: MC = ΔTC ÷ ΔQ.