Compare calculators

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

Customer Acquisition Cost Calculator

Calculate the true cost to acquire a single new customer by dividing all acquisition-related spending — ads, sales team, and tools — by the number of customers won. Essential for comparing CAC against customer lifetime value to assess business sustainability.

Total Ad Spend ($)

Sales Team Costs ($)

Marketing Tools & Software ($)

New Customers Acquired (customers)

Fill in the required fields to see your result.

Marketing

Customer Retention Rate Calculator

Measures the percentage of existing customers a business keeps over a given period. Use it monthly or quarterly to track loyalty, reduce churn, and benchmark against industry standards.

Customers at End of Period

New Customers During Period

Customers at Start of Period

Fill in the required fields to see your result.

Key differences

	Customer Acquisition Cost Calculator	Customer Retention Rate Calculator
Category	Marketing	Marketing
Inputs required	4	3
Result	Customer Acquisition Cost ($)	Customer Retention Rate (%)
What it does	Calculate the true cost to acquire a single new customer by dividing all acquisition-related spending — ads, sales team, and tools — by the number of customers won. Essential for comparing CAC against customer lifetime value to assess business sustainability.	Measures the percentage of existing customers a business keeps over a given period. Use it monthly or quarterly to track loyalty, reduce churn, and benchmark against industry standards.