Marketing July 13, 2026 · 8 Min Read

Customer Acquisition Cost Calculator – Guide & Formulas

Calculate your Customer Acquisition Cost (CAC) to understand the total cost of acquiring new customers.

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Put these formulas into practice with our instant, step-by-step Customer Acquisition Cost Calculator.

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The Customer Acquisition Cost (CAC) Calculator determines the total cost of acquiring a new customer, including all marketing and sales expenses. CAC is a fundamental metric for assessing business sustainability and growth potential.

Key Takeaway

Use the free Customer Acquisition Cost Calculator to calculate your customer acquisition cost (cac) to understand the total cost of acquiring new customers. Get instant results with step-by-step explanations.

How to Use the Customer Acquisition Cost Calculator

  1. Enter your total marketing and sales expenses.
  2. Input the number of new customers acquired in the period.
  3. The calculator computes your CAC.
  4. Compare against Customer Lifetime Value (LTV).

The Formula

CAC = Total Marketing & Sales Costs / Number of New Customers

Variable Definitions

  • CAC: Customer Acquisition Cost — total cost to acquire one customer
  • Total Marketing & Sales Costs: All costs related to acquiring customers
  • Number of New Customers: New customers acquired during the period

Calculating CAC for a SaaS business

A SaaS company spends $50,000 on marketing and sales in a month and acquires 200 new customers.

  1. Step 1: Total Marketing & Sales Costs = $50,000, New Customers = 200.
  2. Step 2: CAC = $50,000 / 200.
  3. Step 3: CAC = $250.
  4. Step 4: It costs $250 to acquire each new customer.

Frequently Asked Questions

What is a good CAC?

A good CAC should be significantly lower than your Customer Lifetime Value (LTV). The ideal LTV:CAC ratio is 3:1 or higher, meaning you earn $3 for every $1 spent on acquisition.

How can I reduce my CAC?

Improve conversion rates, optimize marketing channels, leverage organic growth, implement referral programs, and improve product-market fit.

What costs should be included in CAC?

Include all marketing costs (ads, content, tools), sales team salaries and commissions, marketing software, creative production, and any other costs directly related to customer acquisition.