S SaaS PulseMRR, churn, LTV and CAC in one panel.
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SaaS Metrics Calculator

Enter a few numbers from your billing and ad accounts and get LTV, CAC, payback and a 24-month MRR projection, with a clear read on what is healthy.

🔒 Everything is calculated in your browser. Your numbers never leave your device.

Your numbers

ARR$240,000400 customers
LTV$1,00025 months · average customer lifetime
CAC$200
LTV : CAC5xHealthy
CAC payback5 monthsHealthy
Net revenue retention69%Needs work

MRR projection (24 months)

$0$17k$35k$52k$70kM0M5M10M14M19M24
Current churnChurn 1 point lower

MRR in 12 months: $44,493 at current churn. Extra MRR after 24 months with 1 point less churn: $8,462

How to read these numbers

  • LTV:CAC of 3 or more is the usual target; above 5 may mean you are under-investing in growth.
  • CAC payback under 12 months is considered good for SMB SaaS; under 18 for mid-market.
  • Net revenue retention above 100% means existing customers grow even without new sales.

How it works

  1. Fill in your current MRR, average revenue per account, new customers per month and monthly churn.
  2. Add your monthly sales and marketing spend and your gross margin.
  3. Read LTV, CAC, LTV:CAC and CAC payback. The tags show whether each number is healthy.
  4. Check the projection to see what one point less churn is worth over two years.

The metrics in plain language

MRR is the recurring revenue you bill each month. Churn is the share of customers you lose each month. LTV (lifetime value) is the gross profit a customer brings before leaving: ARPA times gross margin divided by churn. CAC is what it costs to win a customer. CAC payback is how many months of gross profit it takes to earn that cost back.

Why churn matters more than it looks

A 4% monthly churn sounds small, but it means the average customer stays about 25 months. Cutting it to 3% stretches that to 33 months and raises LTV by a third. Because the effect compounds every month, reducing churn is usually the cheapest way to grow MRR.

Frequently asked questions

What is a good LTV:CAC ratio?

Around 3 or higher is the common target. Below 1.5 you are probably losing money on each customer; far above 5 you may be under-investing in growth.

How is the projection calculated?

Each month, MRR is multiplied by one minus churn plus expansion, then new customers times ARPA are added. It is a simple model that assumes constant inputs.

Does it work for annual plans?

Yes. Convert annual contracts to monthly revenue for MRR and ARPA, and use the monthly equivalent of your churn.

Is my data saved?

Your numbers stay in your browser only. Nothing is sent to a server.