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Founders and marketing leaders

Is paid search worth trying?

The landing page conversion rate paid traffic must hit to pay for itself, and how much headroom your funnel has above it.

Your numbers

Starting numbers: A business with no paid acquisition yet, working out whether a test is worth running at all. Change anything below.

What you pay each time someone clicks the ad.

Share of visitors who sign up once they land.

Share of trials that turn into paying customers.

How long you will wait for a customer to cover what they cost.

What you are willing to risk finding out.

Average monthly bill across paying customers.

What this also assumes (2)

Nothing you type leaves your browser.

Headroom on the conversion you need

Conversion the maths requires
Months to earn a customer back
Lifetime profit from one month of spend

How it's computed

About this calculator

Before spending a test budget, the whole question of paid acquisition reduces to one number: the landing page conversion rate at which a click pays for itself. Work out the most you can afford to pay for a customer inside your payback bar, then divide the cost per click by that affordable CAC and your trial-to-paid rate. Below the break-even conversion rate, paid does not pay at any budget, and the honest move is to fix the landing page first. Above it, the headroom between the rate you expect and the rate you need tells you how much room for error the experiment has.

Pull the click cost, conversion, and payback levers to match your own funnel and watch the break-even line and headroom move. The chain shows every step. Save the model with your numbers to stress-test scenarios before a single click is bought.

Every number on this page is computed live by the LeverMap engine.