Unit Economics Calculator

Calculate LTV, CAC ratio and payback period for your business.

Results

Customer LTV$840
LTV:CAC ratio4.2:1
Payback period6 months
Gross profit per user/mo$35.00

Unit economics measure whether each customer is profitable and how long it takes to recoup the cost of acquiring them. LTV (lifetime value) is the total gross profit a customer generates. The LTV:CAC ratio compares that value to the customer acquisition cost. A ratio above 3:1 is generally considered healthy for a sustainable business.

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Frequently asked questions

LTV (Lifetime Value) is the total gross profit a customer generates during their relationship with your business. LTV = Average Revenue per User × Gross Margin × Average Customer Lifetime. For a $50/month user with 70% margin over 24 months: LTV = $50 × 0.70 × 24 = $840.

3:1 or higher is the benchmark. Below 1:1 means you lose money on every customer. 1:1 to 3:1 is marginal. Above 5:1 might mean you are underinvesting in growth.

Payback period is how many months until a customer's cumulative gross profit covers the acquisition cost. CAC of $200 with $35/month gross profit = 6 months payback. Shorter is better - under 12 months is ideal for most businesses.

Improve conversion rates (better landing pages, clearer value proposition), focus on organic channels (SEO, content, referrals), optimize ad targeting, or increase word-of-mouth through product quality.

Reduce churn (improve product, customer support, onboarding), increase average revenue (upsell, cross-sell, price increases), or expand to adjacent products that extend the customer relationship.

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