SaaS LTV:CAC Ratio Calculator

Use this calculator to estimate LTV:CAC ratio.

What this calculator does

The SaaS LTV:CAC ratio calculator helps compare lifetime value to customer acquisition cost.

It is useful for:

• SaaS benchmarking
• marketing analysis
• growth planning
• unit economics review

Formula

LTV:CAC Ratio = LTV ÷ CAC

Where:

• LTV = lifetime value of a customer
• CAC = customer acquisition cost
• LTV:CAC Ratio = unit economics ratio

Example calculation

If:

• LTV = 900
• CAC = 300

Then:

• LTV:CAC ratio = 900 ÷ 300
• LTV:CAC ratio = 3.00

What is LTV:CAC ratio?

LTV:CAC ratio measures how much customer value is generated for each unit of acquisition cost.

Why LTV:CAC ratio matters

This calculation helps businesses:

• assess growth efficiency
• compare acquisition strategy
• benchmark SaaS economics
• improve resource allocation

When to use this calculator

Use this calculator when you want to:

• review unit economics
• assess marketing efficiency
• compare periods
• support scaling decisions

Common mistakes

Common mistakes include:

• using poor LTV estimates
• excluding some acquisition costs
• comparing different customer segments without adjustment
• relying on the ratio alone without churn context

LTV:CAC vs churn rate

These are closely related.

• LTV:CAC measures value relative to acquisition cost
• Churn rate affects how long customer value lasts

Related calculations

You may also want to use:

• LTV Calculator
• CAC Calculator
• Churn Rate Calculator

FAQs

What does this calculator do?

It helps you calculate the LTV:CAC ratio.

Why is this important?

It shows whether acquisition spending is producing enough long-term customer value.

Is a higher ratio better?

Generally yes, though extremely high ratios may also signal underinvestment in growth.