SaaS LTV to CAC Ratio Calculator

What this tool does

This calculator divides customer lifetime value by acquisition cost so you can see whether each new customer is worth meaningfully more than it costs to acquire them.

The ratio is one of the fastest ways to spot fake growth. Revenue can rise while the business gets worse if every new customer costs too much, churns too quickly, or needs too much support to stay active.

How to read the ratio

Use the output as a rough operating signal:

• below 1x means you are losing money on acquisition before overhead
• 1x to 3x means the channel may work, but margins and retention need scrutiny
• around 3x is often a healthy SaaS target
• far above 5x can mean efficient growth, or it can mean you are underinvesting in acquisition

Do not read this metric alone. Pair it with CAC payback and revenue growth so you know both value creation and cash recovery speed.

Useful follow-ups:

• SaaS CAC Payback Period Estimator
• SaaS MRR Growth Calculator

Recommended Next Step

Segment the ratio by channel or customer type. If blended LTV:CAC looks fine but one channel is below 1x, cut or fix that channel before it quietly turns the growth budget into performance art.

Routing Context

This tool sits inside the broader utility workflow. Use the result as a checkpoint, then compare it with the surrounding guides and calculators before making the next change.

For related next steps, start from the resource library or compare another page in the tool collection. That keeps the utility path connected instead of turning this into a dead-end calculator.