Google Ads · Performance Calculator

What your Google Ads spend is actually returning.

Model the full funnel, budget to booked job, in real time. Change one variable and watch ROAS, CPL, and monthly revenue update instantly.

Built on 800+ contractor campaigns
Updated April 2026
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HomeResources › Google Ads Calculator
01
Step 01 · Business Basics
Your Business
Industry, market size, monthly budget.
Industrysets baseline CPC
Market Sizeshifts CPC ±25%
Monthly Budget ($)min $500
02
Step 02 · Funnel Metrics
Your Job Economics
Job value and the three rates that decide your ROAS.
Average Job Value ($)revenue per booked job
Click-to-Lead Conversion Rate Avg
12% avg 8-15% · optimized 18-25%
Call Answer Rate Avg
75% target 80%+ during ad hours
Booking Rate on Answered Calls Avg
35% good 35-50% · low under 25%
03
Step 03 · Campaign Quality
Campaign Quality
These settings shift your cost per lead more than budget does.
Landing Page Quality
Good: Clear CTA, phone number prominent. This is the baseline most contractors have.
Ad Schedule
Peak Only: Highest-intent windows only. Maximizes budget efficiency.
Negative Keyword Coverage
Comprehensive: 200+ negative terms. Near-zero wasted spend.
Return on Ad Spend
C
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ROAS
Enter your details above to see live projections.
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Cost/Click
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Leads/Mo
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Booked
Conversion Pipeline
Budget
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÷ CPC = clicks
Total Clicks
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× conversion rate
Leads
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× answer rate
Answered
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× booking rate
Booked Jobs
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Cost/Lead
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Cost/Job
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Est Revenue
What If You Changed One Thing
Better Landing Page
Enter your details to see projections.
Add Negative Keywords
Enter your details to see projections.
Increase Budget 50%
Enter your details to see projections.
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How This Calculator Works

The CPC benchmarks come from aggregated data across 800+ managed Google Ads accounts in US contractor markets. Market multipliers reflect real pricing differences between small, mid-size, and metro areas. The calculator models the full funnel from click to booked job, then applies landing page quality, ad scheduling, and negative keyword coverage as multipliers on top.

Why Cost Per Click Varies by Industry

Google Ads runs a real-time auction. When more contractors bid on the same keywords, CPC climbs. Roofing averages around $35 per click because roof replacements are high-ticket and competition is fierce. Carpet cleaning and house cleaning average $8 because ticket values are lower and fewer competitors chase the same terms.

Market size compounds this effect. A plumber in San Francisco pays roughly 25% more per click than the same search in a mid-size city. Small and rural markets get the reverse benefit.

The Hidden Cost, Wasted Clicks Without Negative Keywords

Without negative keywords, your ads show for searches that will never convert. A plumber might pay $22 for someone searching "plumbing jobs near me" or "DIY plumbing repair." That click is pure waste. Comprehensive negative keyword lists typically cut wasted clicks by 25-35%.

  • No negatives: expect 25-35% of clicks to be wasted.
  • Basic list: filters the obvious terms, drops waste to 8-10%.
  • Comprehensive: near-zero waste with 200+ industry-specific negatives.

Landing Page Quality Changes Everything

The same ad spend produces wildly different results depending on where you send traffic. A basic website might convert 5-8% of clicks. An optimized landing page with trust signals and a single clear action can hit 18-25%. That is the single biggest lever in the whole funnel.

Google Ads vs LSA, Which Should You Run?

LSA typically produces lower cost per lead and higher-intent calls. Google Ads gives you more control over targeting, ad copy, and keyword selection, and often pushes more volume. Most contractors we manage run both. Use our LSA ROI Calculator to see what the same budget would produce through Local Services Ads.

How to Improve Your Google Ads Economics

  • Negative keywords: build and maintain a comprehensive list. Review search terms weekly for the first month, then monthly.
  • Landing pages: send traffic to dedicated pages with a single CTA, not your homepage.
  • Ad scheduling: run ads during peak intent windows, not 24/7.
  • Call answer rate: missing calls kills ROI faster than any other lever. Staff phones or run an answering service during ad hours.
  • Conversion tracking: set up call and form tracking so Google can optimize bids toward booked jobs, not just clicks.