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

Ecommerce Break-Even Calculator

Calculate exactly how many units you must sell each month to cover fixed costs and hit a profit target. Essential when launching a new product or evaluating a new sales channel.

Monthly Fixed Costs ($)

Variable Cost per Unit ($)

Selling Price per Unit ($)

Marketing Cost per Unit ($)

Target Monthly Profit ($)

Fill in the required fields to see your result.

Ecommerce

Cost Per Acquisition Calculator

Calculate cost per acquisition (CPA) by dividing marketing spend by the number of new customers (or conversions) acquired. Use it as a primary efficiency metric for paid acquisition channels and a key input for sizing acquisition budgets against customer lifetime value.

Marketing Spend ($)

New Customers Acquired

Fill in the required fields to see your result.

Key differences

	Ecommerce Break-Even Calculator	Cost Per Acquisition Calculator
Category	Ecommerce	Ecommerce
Inputs required	5	2
Result	Units Needed to Break Even (units)	Cost Per Acquisition ($)
What it does	Calculate exactly how many units you must sell each month to cover fixed costs and hit a profit target. Essential when launching a new product or evaluating a new sales channel.	Calculate cost per acquisition (CPA) by dividing marketing spend by the number of new customers (or conversions) acquired. Use it as a primary efficiency metric for paid acquisition channels and a key input for sizing acquisition budgets against customer lifetime value.