Google Ads Waste & Budget Leakage Calculator
Quantify exactly how much budget your Google Ads campaigns lose each month to broad search query bleed, uncurated PMax assets, conversion lag misattribution, and bid overshoots.
Your account
90 days free, no credit card required.
Where the money goes
Search Query Bleed & Irrelevant Clicks
Broad and phrase match queries with clicks and no conversions that were never added to a negative keyword list.
Performance Max Asset & Brand Cannibalization
Uncurated asset groups, Final URL expansion sending traffic off-intent, and PMax absorbing branded search you already own.
Smart Bidding Target Overshoot
Target CPA above break-even, target ROAS below margin, and biddable micro-conversions diluting the bidding signal.
Ignored Anomaly Bleed & Broken URL Clicks
Spend spikes, tracking breaks, disapproved assets, and clicks landing on broken or redirecting final URLs.
Your prioritized 5-step action plan
Ordered by recoverable spend for an account shaped like yours.
- 1
Run a full search terms sweep this week
Export every query with clicks and zero conversions, then route the irrelevant ones to an account-wide shared negative list rather than campaign-level negatives so the block applies everywhere, including Performance Max.
- 2
Turn off Final URL expansion on every Performance Max campaign
Expansion routinely sends traffic to off-intent pages. Pair this with brand exclusions so PMax stops buying branded search your Search campaigns already win cheaper.
- 3
Re-derive your Smart Bidding targets from margin, not history
Set target CPA at break-even multiplied by your required contribution margin, and flip low-value conversion goals (page view, session start, add to cart without purchase tracking) to non-biddable.
- 4
Fill every enabled search ad group to three distinct RSAs
Ad groups running one or two ads have no rotation and no test signal. Keep headline overlap under 60% between ads so the test is genuinely different copy, not paraphrase.
- 5
Put an anomaly watch on spend and conversion tracking
A single broken conversion tag or a runaway campaign can burn a week of budget silently. Daily checks on spend deltas, conversion rate drops, and final URL health catch it in hours.
Common questions
How much ad spend is typically wasted in Google Ads?
Across accounts we audit, 15% to 35% of monthly Google Ads spend produces no measurable conversion value. The largest contributors are broad and phrase match queries that never get negated, Performance Max traffic flowing to off-intent pages, and Smart Bidding targets set too loose for the account's real margin.
How do I calculate search query bleed?
Pull the search terms report for the last 30 to 90 days, then total the cost of every query with clicks and zero conversions that is not relevant to what you sell. Divide that by total spend to get your bleed rate. In GAQL: SELECT search_term_view.search_term, metrics.cost_micros, metrics.conversions FROM search_term_view WHERE segments.date DURING LAST_30_DAYS.
Does Smart Bidding waste money?
Smart Bidding itself does not waste money, but the target you give it does. A target CPA set above your true break-even, or a target ROAS below it, tells Google to buy traffic you cannot profitably convert. Micro-conversions left biddable (page views, add to cart without purchase tracking) also dilute the signal and push bids toward low-value users.
Is this Google Ads waste calculator free?
Yes. The calculator is free, runs entirely in your browser, and requires no account or Google Ads connection.
Reclaim your wasted spend with PPC Tuner
Connect your account and PPC Tuner audits it against your real search terms, assets, bids, and budgets, then stages the exact fixes for your approval. Nothing changes until you say so.
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