CAC Calculator – Customer Acquisition Cost
Calculate cost to acquire each new customer and evaluate marketing efficiency.
About This Calculator
Calculate cost to acquire each new customer and evaluate marketing efficiency. Use the calculator above for instant results.
Worked Examples
- CAC = $50,000 / 200 = $250 per customer
Answer: $250 CAC
- CAC = $2,000 | Need LTV > $6,000 for 3:1 ratio
Answer: $2,000 CAC
- CAC = $20 | Excellent efficiency
Answer: $20 CAC
Who Uses This Calculator?
Measure acquisition efficiency.
Monitor unit economics.
Evaluate growth sustainability.
Justify team investment.
Common Mistakes to Avoid
❌ Only counting ad spend
CAC should include ALL sales and marketing costs: salaries, tools, agencies, events, content production.
❌ Not tracking by channel
Overall CAC is useful, but channel CAC (e.g., CAC from paid search vs organic) reveals what's working.
Frequently Asked Questions
LTV:CAC ratio?
Target 3:1 minimum. LTV $1,200, CAC $400 = 3:1. Below 3:1 means growth is inefficient or unprofitable.
Payback period?
Months to recover CAC. CAC $1,000 / monthly gross profit $100 per customer = 10-month payback. Under 12 months is good.
How to reduce CAC?
Improve conversion rates, invest in referral programs, optimize best-performing channels, improve qualification process.