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fin.customer-ltv-adv Calculator
Calculates advanced Customer LTV with customer acquisition cost, payback period, and LTV:CAC ratio from revenue, margin, and churn inputs. The LTV:CAC ratio is the fundamental SaaS unit economics metric — below 3× the business model is not viable at scale.
Inputs
Avg Order
Reference formula or conversion factor shown for context.
Purchase Freq
Reference formula or conversion factor shown for context.
Gross Margin
Profit as a percentage of revenue. Margin % is always lower than markup % — a $5 profit on a $15 selling price is 33% margin but 50% markup.
Churn
Amount per unit of time or per unit quantity. Check the denominator before interpreting.
Results
LTV
LTV (customer lifetime value) -- total revenue expected from a customer over their entire relationship. Compare to CAC for unit economics.
avg annual revenue per customer
The result expressed on a per-year basis.
customer lifetime (yrs)
The computed duration or time value.
max viable CAC (LTV/3)
LTV (customer lifetime value) -- total revenue expected from a customer over their entire relationship. Compare to CAC for unit economics.
gross margin
Gross profit as a percentage of revenue. Tells you how much of each dollar of sales remains after production costs. Higher gross margin gives more room to cover fixed costs.
LTV:CAC target
LTV (customer lifetime value) -- total revenue expected from a customer over their entire relationship. Compare to CAC for unit economics.