Shop tools / AdvertisingGoogle Ads Revenue Calculator for Auto & Truck Repair Shops
How much work could your ad budget bring into the bays? Follow the numbers from paid clicks to first calls, completed repair orders and monthly sales. Start with the example, then enter your shop’s own figures.
Sales from first repair orders
- Paid clicks
- 600
- First calls
- 108
- Qualified calls
- 56.48
- Paid first repair orders
- 16.95
- Cost per first call
- $27.78
- Cost per qualified call
- $53.11
- Ad cost per acquired customer
- $177.04
- Revenue / ad spend (ROAS)
- 2.82×
- Gross profit after ad spend
- $812.67
- Return on media spend after direct costs
- 27.09%
- State reference CTR
- —
What could a $3,000 monthly budget generate?
At $5 per click, the budget buys 600 clicks. If 18% generate a first call, that gives 108 calls. At 52.3% call quality, about 56 qualify. Closing 30% of those calls projects about 17 first repair orders. At $500 per order, expected sales are $8,472.60.
At a 45% gross margin, those sales contribute $3,812.67 before advertising. After $3,000 in media spend, $812.67 remains to cover overhead and other costs. ROAS is 2.82×. The modeled return after direct costs is 27.09%.
How to estimate revenue from Google Ads
- Select a state or use your own data. Each of the 50 state presets supplies an editable CPC and click-to-call assumption. Its reference CTR describes clicks per impression. CTR is displayed for context and does not change the number of clicks a fixed budget buys at a given CPC.
- Enter your CPC and monthly budget. Use spend and clicks from the same service area. For a sensitivity check, the original worksheet suggests trying $4–10 per click for auto and $6–15 for truck repair. These are example inputs.
- Estimate calls from clicks. Divide tracked first calls from the modeled ads by paid clicks. Exclude repeat status calls. Change the rate to match the campaign or landing page you intend to use.
- Measure call quality. Exclude wrong numbers, spam and requests outside your service list. If using EGL, use AI Qualified first calls and the same first-call definition throughout. The worksheet starts at 52.3%.
- Enter the close rate. Use completed, paying jobs divided by qualified calls or all first calls. Select the matching basis. With the all-calls basis, qualification is already reflected in the observed close rate.
- Enter the first repair order and gross margin. Use actual invoices. Run general auto, heavy-duty and collision separately when their tickets and direct costs differ.
- Compare the forecast with capacity. Check whether your service desk can answer the projected calls and your team can complete the work. Compare another budget, close rate or job mix before making changes.
From ad spend to revenue and return
Clicks = budget ÷ CPC. First calls = clicks × click-to-call rate. Qualified calls = first calls × qualified share. Paid jobs = selected call group × close rate. Revenue = paid jobs × first repair order value. The model uses unrounded expectations throughout and assumes the entered media budget is spent in full.
ROAS = revenue ÷ ad spend. Contribution after ads = revenue × gross margin − ad spend. Return on media spend after direct costs = contribution after ads ÷ ad spend × 100%. Overhead, agency fees, taxes and repeat visits are outside this first-job model.
Already have a revenue target? Use the Google Ads Budget Calculator to work backward to required spend.
Ad revenue estimator FAQ
What does this calculator estimate for my shop?
It projects the sales generated when Google Ads brings paying repair customers to your shop. It also shows the expected calls and acquisition costs required for that sales volume.
How accurate is the forecast?
Use recent CPC, first calls, qualified calls and closed invoices from the same campaigns and period. Compare the projection with actual closed work after leads have had time to convert. Local demand, seasonality and available appointments can change the outcome.
Why does call quality matter?
A call about a repair you offer is a different opportunity from a wrong number. If the close rate is measured on qualified calls, improving the qualified share increases projected jobs. If you use an observed all-call close rate, call quality changes the qualified-call metrics only.
Can a diesel, truck or collision shop use it?
Yes. Estimate separately for services with different tickets and closing patterns. A heavy-duty diagnostic visit and a collision estimate can have very different costs and times to approval.
What is a good ROAS for an auto repair shop?
Start with your margin. At 40% gross margin, media break-even is 1 ÷ 0.40 = 2.5× ROAS before overhead and fees. At 4× ROAS, each $1 in ads produces $4 of sales and $1.60 of gross profit, leaving $0.60 after media spend.
What should I change if projected revenue is low?
Check the largest loss in the funnel. Irrelevant calls suggest reviewing targeting and search terms. Qualified calls that fail to become jobs point to availability, call handling or follow-up. If acquisition costs work and bays are available, test a larger budget against local demand.
Google Ads and call-tracking case studies
Explore campaign reports and Google Maps call data from repair shops. Select any screenshot to view it at full size.
View repair shop case studies →Built for repair shop owners
Element DMA works with independent auto repair, collision, diesel, truck and trailer shops across the US. We built this worksheet to forecast first-job revenue from the calls, qualified opportunities and paid jobs a shop can measure. Our team plans campaigns, reviews call quality and reports on results. Contact Element DMA.
Can your local market support this budget?
Bring your estimate to a consultation. We’ll discuss the work you want, available bays, search demand and the lead cost your shop can support.
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