SaaS Lifetime Value Calculator

Estimate customer lifetime value using ARPA, churn, gross margin, and expansion assumptions. This page also keeps the formula, examples, FAQs, and references close by so you can check the result with confidence.

What This SaaS Lifetime Value Calculator Helps You Do

SaaS LTV combines ARPA, churn, gross margin, and expansion to estimate the average net value of each customer. Review the formula and examples below if you want to see how the result is derived.

This page is meant to give you a fast answer, but it also helps you double-check the math before you make a decision. Start with the inputs that you already know, run the calculation, and then compare the output with the formula, examples, and FAQs below so you can see whether the answer fits the situation you are modeling.

If the result looks off, the usual causes are a unit mismatch, a missing decimal, the wrong scenario, or a value that needs to be entered as a rate instead of a total. The notes on this page are designed to make those checks easy without forcing you to leave the calculator and search for context elsewhere.

  • Use the calculator first for a quick estimate.
  • Use the formula to understand how the result is built.
  • Use the examples to compare common use cases.
  • Use the references when the answer depends on a standard or assumption.

Common Checks

A quick result is useful, but the best result is one that still makes sense when you look at it a second time. If you are comparing scenarios, try changing one input at a time so you can see which variable has the biggest impact on the final answer. That makes it much easier to spot whether the calculation matches your expectations.

It also helps to keep the context of the problem in mind. A calculator can tell you the math, but you still need to decide whether the input represents a total, a rate, an average, or a category-specific assumption. When in doubt, start with a simple example from the page and scale up from there.

  • Check that every unit matches the rest of the problem.
  • Keep rates, totals, and averages separate.
  • Adjust one variable at a time when testing scenarios.
  • Use the smallest realistic input first, then scale upward.

Scenario Planning

This calculator is especially useful when you want a quick answer before you commit time, money, or effort. Try one baseline input set, then change a single number and compare the result so you can see how sensitive the answer is to that variable.

That makes the page useful for more than just arithmetic. It becomes a small decision aid that helps you compare options, test assumptions, and explain the final number with confidence when you need to share it with someone else.

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Result

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Quick Answer: SaaS LTV combines ARPA, churn, gross margin, and expansion to estimate the average net value of each customer. Review the formula and examples below if you want to see how the result is derived.

How to Calculate SaaS Lifetime Value Calculator

  1. Enter revenue inputs: Add customer count, MRR or ARPA, gross margin, churn, and expansion.
  2. Choose the metric: Select LTV, ARPA from MRR, MRR from ARPA, or the LTV to CAC ratio.
  3. Review the result: The result shows the metric and supporting details for planning.

SaaS Lifetime Value Calculator Formula

LTV = 0.5 × 1 / churn × (2 × ARPA + ARPA_growth × (1 / churn - 1)) × margin
Variable Meaning Unit
ARPA Average revenue per account $ / month
Churn Monthly churn rate %
Margin Gross margin %

Worked Examples

USA - LTV estimate
  • Customers: 25
  • MRR: $6,000
  • Gross margin: 65%
  • Churn: 4%

Result: $4,062.50

This shows how strong LTV can be when churn is low and margins are healthy.

How to Interpret Your Results

Range Meaning Action
Lower LTV Customers do not stay very long or margin is low Work on churn, retention, and pricing.
Higher LTV Customers are valuable over a longer period Compare LTV against CAC to confirm efficient growth.

Frequently Asked Questions

ARPA is average revenue per account, usually measured per month.

Yes. The calculator can derive ARPA from MRR and customer count.
Planning note: This is a planning estimate and does not replace cohort analysis or accounting data.

References

Last reviewed: April 2026