FinanceCorporate Finance
Discount Rate Calculator
The discount rate calculator can be used to find the discount rate, future value, or present value by inputting the other variables.
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The Customer Acquisition Cost (CAC) Calculator measures how much you spend to win each new customer. CAC is a critical metric for SaaS and e-commerce businesses that invest in marketing and sales. Tracking CAC alongside customer lifetime value (LTV) tells you whether your growth spending is sustainable.
CAC is your total marketing and sales spend divided by the number of new customers acquired in the same period. It accounts for every dollar that goes into attracting, converting, and closing a buyer.
Say a company spends $50,000 on marketing and $30,000 on sales in a quarter and brings in 200 new customers. The CAC works out to ($50,000 + $30,000) ÷ 200 = $400 per customer, meaning each new paying customer cost an average of $400 to acquire.
Aim for an LTV:CAC of about 3:1, so each customer generates roughly three times their acquisition cost. That ratio gives you enough margin to cover overhead, reinvest in growth, and absorb the customers who churn faster than expected.
Put your total marketing expenses in the "Cost of Marketing" field: advertising, content production, SEO tools, paid social, and email-platform fees.
Add sales costs to the "Cost of Sales" field: salaries and commissions plus CRM, travel, and enablement-tool expenses.
Fill in "Number of New Customers" with the customers acquired during the same period.
Read the CAC. Enter any three values to determine the fourth.
Plan marketing and sales budgets against a customer-growth target. If you need 500 new customers at a $200 CAC, allocate at least $100,000 in combined spend.
Calculate CAC per marketing channel to identify the most cost-effective channels to scale.
Report CAC to investors as a signal of growth-engine efficiency. A falling CAC over time improves your unit economics story.
Price your product so average revenue per customer comfortably clears CAC. At a $400 CAC, revenue close to $400 means you're losing money once service costs are factored in.
Measure costs and customer counts over the same window, for example, total marketing spend in Q1 ÷ new customers acquired in Q1.
Include sales salaries and agency fees. Leaving them out understates CAC and overstates profitability.
Track CAC monthly or quarterly to spot trends early. If CAC rises, investigate channel ROI, creative fatigue, and bid efficiency.
There's no universal benchmark, CAC differs by industry. For SaaS, a 12-month CAC payback is healthy. The most useful comparison is your own LTV:CAC ratio: aim for 3:1, meaning a customer generates $3 of lifetime value for every $1 you spend to acquire them.
Generally no. CAC covers what you spend to win new customers; customer success, support, and loyalty programs belong to retention metrics. If your team intentionally combines acquisition and retention for internal reporting, label it clearly (e.g., "acquisition + retention cost") and report a pure CAC alongside it so stakeholders can compare.
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Customer Acquisition Cost Calculator
Calculate customer acquisition cost (CAC) with this free calculator. Enter marketing costs, sales costs, and new customers to find your cost per acquisition.
https://hexacalculator.com/calculators/finance/corporate-finance/cac-calculator
Finance
Corporate Finance