LeverMap
All calculators
What does doubling spend actually buy?
The extra customers a bigger budget really buys after diminishing returns, and what each marginal one costs.
Your numbers
Starting numbers: A business with an acquisition channel that works, asking what happens if it simply spends more on it. Change anything below.
Two means doubling what you spend today.
One means every extra pound works as hard as the last. Lower means each one works less.
Share of leads that turn into paying customers.
Current monthly acquisition spend.
Leads a typical month brings in now.
What this also assumes (3)
Nothing you type leaves your browser.
What the extra spend returns
—
How it's computed
About this calculator
Doubling a channel's budget almost never doubles its output. Leads scale with spend raised to a saturation exponent, so the extra money buys fewer leads than the first money did. This model separates the two numbers that usually get blurred: blended CAC, which the dashboard will report, and incremental CAC, what each marginal customer actually costs. The gap between them is the whole argument. If the marginal return on the extra spend falls below the bar the channel was approved on, the raise is buying worse customers than the story implies.
Pull the multiplier to test a modest raise against an aggressive one, bend the saturation curve to match what your channel has shown historically, and watch incremental CAC pull away from blended. The chain shows every step. Save the model with your numbers to stress-test scenarios and share the case before the budget meeting.
Every number on this page is computed live by the LeverMap engine.