Estimate revenue and gross profit per customer, simple gross-margin LTV, LTV-to-CAC ratio, and CAC payback from SaaS assumptions.
Formula
const recurringRevenue = Math.max(0, Number(inputs.annualRecurringRevenue || 0)); const customerCount = Math.max(1, Number(inputs.activeCustomers || 1)); const churnRate = Math.min(1, Math.max(0, Number(inputs.annualLogoChurnPct || 0) / 100)); const grossMargin = Math.min(1, Math.max(0, Number(inputs.grossMarginPct || 0) / 100)); const acquisitionCost = Math.max(0, Number(inputs.customerAcquisitionCost || 0)); const annualRevenuePerCustomer = Math.round((recurringRevenue / customerCount) * 100) / 100; const annualGrossProfitPerCustomer = Math.round((annualRevenuePerCustomer * grossMargin) * 100) / 100; const simpleLtvAmount = churnRate > 0 ? Math.round((annualGrossProfitPerCustomer / churnRate) * 100) / 100 : 0; const ltvToCacRatio = acquisitionCost > 0 ? Math.round((simpleLtvAmount / acquisitionCost) * 100) / 100 : 0; const monthlyGrossProfitPerCustomer = annualGrossProfitPerCustomer / 12; const cacPaybackMonths = monthlyGrossProfitPerCustomer > 0 ? Math.round((acquisitionCost / monthlyGrossProfitPerCustomer) * 100) / 100 : 0; return { annualRevenuePerCustomer, annualGrossProfitPerCustomer, simpleLtvAmount, ltvToCacRatio, cacPaybackMonths };Annual Recurring Revenue ($)
500,000
Active Customers
1,000
Annual Logo Churn (%)
5
Gross Margin (%)
80
Customer Acquisition Cost ($)
200
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With the default inputs, $500,000 in annual recurring revenue across 1,000 active customers gives $500 in annual revenue per customer and $400 in annual gross profit per customer at an 80% gross margin. At 5% annual logo churn, simple gross-margin LTV is $8,000, the LTV-to-CAC ratio is 40, and CAC payback is 6 months on a $200 acquisition cost.
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The estimate combines Annual Recurring Revenue ($), Active Customers, Annual Logo Churn (%) and returns Annual Revenue per Customer, Annual Gross Profit per Customer, Simple Customer LTV.
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