Ad spend loss estimator
Model: assumes a flat share of spend is attributable to invalid or low-value clicks (bots, fat-finger, irrelevant queries). Real accounts need log-level data from your ads platform — this is a what-if slider for planning talks.
Implied clicks / month1250
Implied wasted clicks188
Implied wasted spend$750.00
Key takeaways
- Turns gut-feel invalid percents into dollar ranges for budget meetings.
- Shows implied click volume from spend and CPC.
- Useful before asking an agency for log proof.
- Honest about being a scenario toy, not forensic fraud detection.
- Runs fully offline after load.
Who built this
ContractorHQ is edited by Bernard Guido — 25+ years in trade operations and software. These utilities follow the same quality bar as our reviews: fast pages, honest disclosure, and tools that stay useful without selling your data.
Frequently asked questions
Where do I get the invalid %?
From your own investigation: click quality reports, IP exclusions, offline lead quality feedback. If you do not have data, treat the slider as a sensitivity analysis, not a fact.
Does this connect to Google Ads?
No API calls. It is a whiteboard formula: wastedSpend = monthlySpend × invalidPct ÷ 100, with clicks = spend ÷ CPC for intuition.
Why blended CPC?
Most SMB accounts mix match types and geos. A single blended CPC keeps inputs short. Swap in a campaign-level CPC if you prefer.
Tax and refunds?
Not modeled. Add those in your spreadsheet after export.