LTV:CAC tells you whether each dollar of acquisition spend generates positive returns.
Startup Finance
SaaS customer lifetime value calculator for LTV to CAC and unit economics.
Calculate SaaS LTV using ARPU, churn rate, gross margin, expansion revenue, and discount rate, then compare it to CAC for a complete unit-economics check.
Direct answerA SaaS customer lifetime value calculator estimates margin-adjusted LTV from ARPU, churn, expansion, and discount rate so finance and growth teams can evaluate LTV to CAC.
Browser-first workflowLTV:CAC ratioBuilt for SaaS teams
1. Enter unit economics
CalculatorEnter ARPU, churn, gross margin, discount rate, expansion revenue, and CAC. Or load the sample scenario.
Enter assumptions or load a sample scenario to see the results.
Live Tool
SaaS Customer Lifetime Value Calculator in the browser
The functional tool stays first: enter your unit economics inputs, review the result, and only then scroll into the guide below.
Privacy-first workflow
This page runs in the browser and does not upload any data.
What this tool is built to solve
A SaaS customer lifetime value calculator estimates margin-adjusted LTV from ARPU, churn, expansion, and discount rate so finance and growth teams can evaluate LTV to CAC.
DCF-adjusted LTV prevents overvaluing customers with very low churn.
Give every stakeholder one defensible LTV figure to anchor the conversation.
Key signals
The result cards explain where unit economics pressure is coming from.
Decision support
Use these cards to move from the calculation into the next unit economics or pricing discussion.
Detailed breakdown
The breakdown keeps the math explainable and export-ready.
Discounts future revenue so long customer lifetimes don't produce inflated values.
The core SaaS health metric: is each customer worth more than it costs to acquire?
How many months of gross margin to recover CAC.
Take unit economics into investor decks or board materials.
Guide Below The Tool
How to use the saas customer lifetime value calculator well
This section is written for searchers, answer engines, and busy SaaS teams: direct definitions, practical steps, and concrete follow-up guidance.
A SaaS customer lifetime value calculator estimates margin-adjusted LTV from ARPU, churn, expansion, and discount rate so finance and growth teams can evaluate LTV to CAC.
SaaS founders, growth teams, VCs, and FP&A analysts evaluating unit economics.
ARPU, monthly churn rate, gross margin percentage, discount rate, expansion revenue, and CAC are the main drivers.
Workflow
Four practical steps
Use the tool as a fast decision layer. The goal is to move from raw assumptions to a defensible LTV figure before you open a larger financial model.
1
Enter ARPU and gross margin.Start with the monthly revenue per user and the margin after cost of goods sold.
2
Set churn, discount rate, and expansion revenue.Add the monthly churn rate, the annual discount rate, and any average expansion revenue.
3
Review LTV, LTV:CAC, and payback period.Check whether unit economics are healthy and where the pressure points are.
4
Export and use in investor or pricing discussions.Carry the results into pitch decks, board materials, or pricing strategy reviews.
Review Checklist
What reviewers usually validate first
These are the areas teams usually discuss first once the LTV calculation is visible.
Confirm ARPU reflects the blended average across all plans, not just the highest tier.
Use logo churn or revenue churn consistently - mixing them produces misleading LTV.
Include hosting, support, and onboarding costs in COGS for an honest margin figure.
Use a rate that reflects your cost of capital or investor expected return.
Only include upsell and cross-sell revenue that is repeatable and measurable.
Include all acquisition costs - marketing, sales, onboarding - not just ad spend.
Why This Page Exists
Built to close the gap between a formula and a usable LTV figure
Most search results either define LTV or sell a larger platform. This page solves the immediate job first: use the tool, see the answer, and understand what it means before you move into a deeper unit economics workflow.
The functional tool stays on top so users can solve the immediate problem before reading a guide.
The result cards explain what the output means instead of leaving users with a raw number.
Ledger Summit can build richer unit economics tooling later, but this page delivers value now.
FAQ
SaaS Customer Lifetime Value Calculator questions, answered directly
Written in short form so searchers can get a clear answer without digging through generic product copy.
It estimates total revenue from an average customer using ARPU, churn, margin, and a discount rate, then compares the result to CAC.
SaaS founders, growth teams, VCs, and FP&A analysts evaluating unit economics.
ARPU, monthly churn rate, gross margin percentage, discount rate, expansion revenue, and CAC.
No. Everything runs in your browser.
Yes. If you need cohort-based LTV tracking or integrated financial modeling, Ledger Summit can build it.
Next Step
Need this connected to a broader workflow?
Use the free browser tool first. If you need cohort-based LTV tracking, integrated financial modeling, or a production version, Ledger Summit can build the next layer around your process.
Book a free call