Calculadora de CAC
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
CAC = investimento_marketing / novos_clientes
About this calculator
The CAC Calculator helps businesses determine the Customer Acquisition Cost, a key metric to evaluate the efficiency of marketing and sales investments. The calculation is simple: divide the total marketing investment (including ads, team salaries, tools) by the number of new customers acquired in the same period. The result shows how much the company spends, on average, to attract each customer.
This tool is useful for businesses of all sizes that want to optimize their spending. For example, when launching a campaign, you can calculate the CAC and compare it with the average ticket or Customer Lifetime Value (LTV). A low CAC indicates efficiency, while a high value suggests the need to revise strategies. Use the calculator monthly or per campaign to monitor trends.
Important considerations: include all marketing and sales costs, such as salaries, commissions, and software subscriptions. Avoid considering only ads, as this underestimates the real CAC. Also, clearly define what a 'new customer' is (first purchase, registration, or qualified lead). Consistency in definition is crucial for comparing periods. Remember: the ideal CAC varies by industry, but it should be lower than LTV to ensure profitability.
In practical scenarios, growing startups may have a high CAC initially, which tends to decrease with maturity. Seasonal businesses should calculate CAC per cycle to avoid distortions. The calculator also helps justify investments: if CAC is low, increasing the budget can accelerate growth sustainably.
Frequently asked questions
What is CAC and why is it important?
CAC stands for Customer Acquisition Cost. It is the average cost to acquire a new customer. It helps evaluate whether your marketing and sales investments are generating returns.
What costs should I include in the calculation?
Include all marketing and sales expenses: ads, team salaries, commissions, automation tools, events, and software subscriptions.
How do I know if my CAC is high or low?
Compare the CAC with the Customer Lifetime Value (LTV). Ideally, CAC should be lower than LTV. Also, research benchmarks for your industry.
Should I calculate CAC monthly or per campaign?
Both. Monthly calculation shows general trends, while per campaign evaluates specific actions. Choose based on your goal.
What if my CAC is too high?
Review your strategies: optimize acquisition channels, improve audience targeting, increase conversion rate, or reduce unnecessary costs.