Marginal Rate of Substitution Calculator

The Marginal Rate of Substitution Calculator determines the amount of one good that a consumer is willing to trade for an additional unit of another good while maintaining the same level of satisfaction. Uses the relationship between marginal utilities for preference analysis and choice optimization. Essential tool for economists, microeconomics students and professionals analyzing consumer behavior and indifference curves.

Updated at: 08/26/2025

Additional utility obtained from an extra unit of good X

Additional utility obtained from an extra unit of good Y