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What I wish I'd known when starting — so you don't have to figure it out the hard way. 13+ years of business systems, digital marketing, and strategy for project & service businesses, shared.
Bid Ceiling Calculator
Paid Search · Bidding Strategy

Bid Ceiling Calculator

Once you know what a conversion is allowed to cost, work backwards to the most you can bid per click: max CPC = target cost per conversion × conversion rate.

Target cost per conversion
The max you'll pay for one lead or sale
$
Conversion rate
Of paid clicks — or site-wide, if that's what you've got
%
Current average CPC
What you're actually paying today
$
You can bid up to
$9.00
$150.00 × 6.0%
$3.50 of headroom (+64%) Your current $5.50 CPC is well under the ceiling — there's room to bid more aggressively.
If your conversion rate shifts
This gives you a ceiling, not a target — bidding right up to your max CPC on every click usually erodes margin once you factor in clicks that don't convert. Most advertisers bid somewhat under this line and let auction dynamics do the rest.