Utility

Client Churn & LTV Calculator

See what a client logo is really worth over its lifetime.

A new client logo is worth far more than its first invoice, and knowing exactly how much changes how you sell, price, and retain. This free client churn and lifetime value calculator turns the average retainer, gross margin, and monthly churn rate into the average client lifetime and the real lifetime value of an account, so you can spend on acquisition and retention with numbers instead of guesses.

How to calculate client lifetime value for an agency

Average client lifetime, in months, is one divided by the monthly churn rate. A 5 percent monthly churn rate implies an average lifetime of 20 months. Gross lifetime value is the average monthly retainer multiplied by that lifetime, and net lifetime value applies your gross margin to it, because revenue you spend on delivery is not value you keep. A 4,000 dollar retainer over 20 months at 40 percent margin is 80,000 dollars gross and 32,000 dollars net.

Net LTV is the number that should drive decisions, because it reflects the profit a client actually contributes over the relationship. It reframes a 4,000 dollar a month account as a tens-of-thousands-of-dollars asset, which is a very different thing to risk losing or to invest in winning.

Using LTV to guide acquisition spend and retention

LTV sets the ceiling on what you can afford to spend to win a client. A common rule of thumb is to keep customer acquisition cost under one third of net LTV, which leaves healthy margin after the cost of sales. Knowing your net LTV turns marketing budget from a gut call into a calculated investment with a clear payback.

It also makes the case for retention obvious. Because lifetime is one over churn, small reductions in churn produce outsized gains in lifetime and LTV. Cutting monthly churn from 5 percent to 4 percent stretches average lifetime from 20 months to 25, lifting the value of every client you have. That is why retention spending often returns more than acquisition spending.

Frequently Asked Questions

How do I calculate average client lifetime?▼

Divide one by your monthly churn rate. A 5 percent monthly churn rate means an average client lifetime of 20 months (1 divided by 0.05). The lower your churn, the longer the average lifetime and the higher each client's lifetime value.

Should I use gross or net LTV for decisions?▼

Net LTV, which applies your gross margin, is the better number for decisions because it reflects the profit you actually keep. Gross LTV overstates value by ignoring delivery cost. Use net LTV to set acquisition budgets and prioritize retention.

How much can I spend to acquire a client?▼

A common guideline is to keep customer acquisition cost under one third of net LTV, which preserves healthy margin after the cost of sales. If your net LTV is 32,000 dollars, that points to an acquisition budget ceiling around 10,000 dollars per client, adjusted for your own targets.

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