Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Opportunity Cost Calculator

Quantify what you give up when choosing one option over another. Use this calculator to evaluate business investments, career choices, or any decision with a trade-off.

Value of Chosen Option ($)

Value of Best Alternative ($)

Fill in the required fields to see your result.

Economics

Consumer Surplus Calculator

Calculate the consumer surplus — the economic benefit buyers gain when they pay less than their maximum willingness to pay. Use it in market analysis, pricing strategy, or economics coursework.

Maximum Willing Price ($)

Market Price ($)

Quantity Purchased (units)

Fill in the required fields to see your result.

Key differences

	Opportunity Cost Calculator	Consumer Surplus Calculator
Category	Economics	Economics
Inputs required	2	3
Result	Opportunity Cost ($)	Consumer Surplus ($)
What it does	Quantify what you give up when choosing one option over another. Use this calculator to evaluate business investments, career choices, or any decision with a trade-off.	Calculate the consumer surplus — the economic benefit buyers gain when they pay less than their maximum willingness to pay. Use it in market analysis, pricing strategy, or economics coursework.