Free Interactive CAC Calculator

Use this customer acquisition cost calculator to estimate how much you spend per new customer and measure the payback period using your marketing and sales inputs. Built for e-commerce analytics teams seeking accurate CAC tracking.

Basic CAC Calculator

Enter your numbers to calculate your Customer Acquisition Cost (CAC):

{`Total Marketing Spend: $______
Total Sales Costs: $______
Additional Acquisition Costs: $______
Number of New Customers: ______

Your CAC = $______`}
  

Example Calculation:

• Marketing Spend: $15,000
• Sales Costs: $8,000
• Additional Costs: $2,000
• New Customers: 125

CAC = ($15,000 + $8,000 + $2,000) ÷ 125 = $200 per customer

Advanced CAC Calculator with Channel Breakdown

Calculate CAC by channel for optimization insights and budget alignment.

CAC Payback Period Calculator

Determine how long it takes to recover acquisition costs using your profit margins and purchase frequency.

{`Customer Acquisition Cost: $______
Average Order Value: $______
Gross Margin %: ______%
Purchase Frequency (annual): ______

Payback Period = ______ months`}
  

Example:

• CAC: $200
• AOV: $85
• Gross Margin: 60%
• Purchase Frequency: 4× per year

Payback Period = $200 ÷ ($85 × 0.60 × 4/12) = 11.8 months

Use these calculators to connect Shopify analytics with marketing attribution data for a true understanding of CAC efficiency and payback performance across campaigns.