Separate customer revenue from support cost and margin to see the real monthly contribution.
SaaS Metrics
Unit economics that show whether growth is creating value.
Enter ARPA, gross margin, support cost, CAC, onboarding cost, and churn to calculate contribution margin, LTV, payback period, and LTV to CAC quickly.
Direct answerA unit economics calculator shows whether acquiring one more customer creates value by combining customer revenue, margin, support cost, CAC, and churn into contribution and payback metrics.
Browser-first workflowFunctional tool on topBuilt for finance operators
1. Build the scenario
CalculatorUse monthly customer revenue, monthly support cost, acquisition cost, onboarding cost, gross margin, and monthly churn.
Enter assumptions or load a sample scenario to see the results.
Live Tool
Unit Economics Calculator in the browser
The functional tool stays first: use the calculator, review the result, and only then scroll into the guide below.
Privacy-first workflow
This page runs in the browser and is designed for quick finance review before you move the numbers into a broader model.
What this tool is built to solve
A unit economics calculator shows whether acquiring one more customer creates value by combining customer revenue, margin, support cost, CAC, and churn into contribution and payback metrics.
Estimate LTV using churn and gross margin so the number has an operating basis.
Show how many months it takes to recover acquisition and onboarding cost.
Key signals
The result cards explain where the pressure or opportunity is coming from.
Decision support
Use these cards to move from the calculation into the next finance or operating discussion.
Detailed breakdown
The breakdown table keeps the math explainable and export-ready.
Enter the assumptions and get the core answer immediately.
The result cards explain what the math means for the next discussion.
Use the tool quickly before moving the numbers into a broader model.
Take the output into planning, budgeting, or review materials.
Guide Below The Tool
How to use unit economics calculator well
This section is written for searchers, answer engines, and busy finance teams: direct definitions, practical steps, and concrete follow-up guidance.
A unit economics calculator shows whether acquiring one more customer creates value by combining customer revenue, margin, support cost, CAC, and churn into contribution and payback metrics.
SaaS founders, finance teams, growth leaders, and investors.
ARPA, gross margin, support cost, CAC, onboarding cost, and churn determine the output.
Workflow
Four practical steps
Use the tool as a fast decision layer. The goal is to move from raw assumptions to a usable finance answer before you open a larger model.
1
Enter customer revenue and margin.Start with the inputs or row data that define the current scenario.
2
Add support and acquisition costs.Add the comparison layer or second driver that changes the answer most.
3
Add churn.Review the output and isolate the signal that matters most.
4
Review payback and LTV to CAC.Use the result in the next planning, review, or finance discussion.
Review Checklist
What reviewers usually validate first
These are the areas teams usually discuss first once the calculation or analysis is visible.
This area usually changes the interpretation of the output quickly and deserves early follow-up.
This area usually changes the interpretation of the output quickly and deserves early follow-up.
This area usually changes the interpretation of the output quickly and deserves early follow-up.
This area usually changes the interpretation of the output quickly and deserves early follow-up.
This area usually changes the interpretation of the output quickly and deserves early follow-up.
This area usually changes the interpretation of the output quickly and deserves early follow-up.
Why This Page Exists
Built to close the gap between a formula and a usable finance decision
Most search results either define the metric 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 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 finance tooling later, but this page delivers value now.
FAQ
Unit Economics Calculator questions, answered directly
Written in short form so searchers can get a clear answer without digging through generic product copy.
A unit economics calculator shows whether acquiring one more customer creates value by combining customer revenue, margin, support cost, CAC, and churn into contribution and payback metrics.
SaaS founders, finance teams, growth leaders, and investors.
ARPA, gross margin, support cost, CAC, onboarding cost, and churn determine the output.
No. The page runs the calculator in your browser and does not require a file upload for the base workflow.
Yes. If you need a richer model, recurring workflow automation, or an internal production version, Ledger Summit can build it around your process.
Next Step
Need this connected to a broader workflow?
Use the free browser tool first. If you need a richer model, reporting automation, or an internal production version, Ledger Summit can build the next layer around your process.
Book a free call