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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.
| Channel | Marketing Spend | Sales Costs | Other Costs | New Customers | CAC |
|---|---|---|---|---|---|
| Google Ads | $8,000 | $2,000 | $500 | 50 | $210 |
| $6,000 | $1,500 | $300 | 45 | $173 | |
| $500 | $500 | $100 | 15 | $73 | |
| Organic | $0 | $1,000 | $200 | 25 | $48 |
| Total | $14,500 | $5,000 | $1,100 | 135 | $153 |
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.
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