LTV to CAC Ratio: What It Is and Why It Matters for B2B Growth

LTV to CAC is one of the most useful ratios in B2B. It tells you whether your business is spending money on growth the right way.

LTV is lifetime value — the total revenue you expect from a customer over the time they are with you. CAC is customer acquisition cost — what you spend to win that customer. The ratio divides one by the other.

A healthy LTV:CAC ratio for most B2B companies is 3:1 or higher. That means for every dollar you spend to acquire a customer, you get three back. Below 1:1 means you lose money on each customer. Between 1:1 and 3:1 is a warning zone.

Most B2B companies do not track this number. They know their revenue and their ad spend, but they do not put them together this way. Once you start tracking LTV:CAC, it changes how you think about every growth decision.

Use this framework: calculate your average contract value, multiply by average customer lifespan in years, and divide by your total sales and marketing spend per customer acquired. That is your LTV:CAC. If it is below 3, something in your acquisition funnel needs work.