How to Set Up Conversion Tracking in Google Ads (Step by Step)

No Conversion Tracking Means You Are Flying Blind

If you cannot measure which keywords, ads, and campaigns are generating leads or sales, you are making budget decisions based on guesses. I have inherited accounts spending $10,000 per month with zero conversion tracking. Every optimization decision — bid adjustments, keyword pauses, ad copy tests — was pure speculation. Setting up conversion tracking is the single highest-leverage action in any Google Ads account.

Here is how to do it correctly, step by step.

Step 1: Decide What to Track

Before touching Google Ads, define what counts as a conversion for your business:

• Lead form submissions — track the thank-you page URL after form submit
• Phone calls — from ad click or from website click-to-call
• Purchases — e-commerce transaction confirmation page
• Chat sessions — if using a chat widget with a completion event
• Key page visits — /contact/, /book-appointment/ as secondary conversions

Pick 1-2 primary conversions to use for bidding. Secondary conversions provide context but should not drive Smart Bidding decisions.

Step 2: Create the Conversion Action in Google Ads

1. In Google Ads, go to Tools & Settings > Measurement > Conversions
2. Click the + New conversion action button
3. Select your conversion type (Website, Phone calls, App, Import)
4. For website conversions: choose “URL contains” or “URL equals” your thank-you page
5. Set the conversion value (use $1 for leads if you do not have a specific value, it enables value-based bidding later)
6. Set Count to “One” for leads, “Every” for purchases
7. Set a 30-day conversion window for most service businesses

Step 3: Install the Tag via Google Tag Manager

Google Tag Manager (GTM) is the cleanest way to deploy conversion tags without developer help. If GTM is not already on your site, install it first — the setup takes about 10 minutes and requires adding two code snippets to your site header and body.

Once GTM is live:

1. Create a new Tag in GTM, choose Google Ads Conversion Tracking
2. Enter your Conversion ID and Conversion Label (found in the Google Ads tag setup screen)
3. Set the Trigger to fire on your thank-you page URL
4. Preview the container, confirm the tag fires on the thank-you page, then publish

Step 4: Verify with Tag Assistant

Install the Google Tag Assistant Chrome extension. Visit your thank-you page URL and confirm the Google Ads conversion tag fires with a green status. If it shows a red or orange status, check your trigger conditions and URL matching rules.

Step 5: Set Up Phone Call Tracking

Google offers two call tracking options:

• Call from ads: Tracks calls to a Google forwarding number shown directly in your ad. Set this up under Extensions > Call Extensions.
• Calls from website: Tracks clicks on your phone number on the landing page. Requires adding a code snippet or GTM tag to your site.

Set a minimum call duration of 60-90 seconds to filter out misdials and robocalls. Any call shorter than that is unlikely to be a real lead.

Step 6: Link Google Analytics 4 and Import Goals

If you have GA4 set up, link it to Google Ads and import key GA4 events as secondary conversions. This gives you a fuller picture of post-click behavior. For Smart Bidding purposes, always use native Google Ads conversion tags as primary conversions — GA4 imports introduce sampling and delay that hurts bidding algorithm performance.

Once conversion tracking is running, you are ready to implement the bidding strategies from our bidding strategies guide.

Frequently Asked Questions

What is conversion tracking in Google Ads?

Conversion tracking records when a user completes a desired action after clicking your ad — a form submission, phone call, purchase, or page visit.

Can I set up conversion tracking without a developer?

Yes. Using Google Tag Manager, most non-developers can install conversion tracking without editing site code directly.

What is the difference between a goal and a conversion in Google Ads?

In Google Ads, a conversion is an action you define and track. They serve the same purpose as goals in older Google Analytics setups.

Should I count every conversion or one per click?

For lead generation, count one conversion per click. For e-commerce, count every conversion since multiple purchases per session are meaningful.

How do I track phone calls from Google Ads?

Use Google forwarding numbers to track calls from ads or from your website. Set a minimum call duration threshold to filter out wrong numbers.

Why is my conversion tracking showing zero conversions?

Common causes: tag not firing, conversion window too short, tracking the wrong URL, or cookie consent blocking the tag.

Need help getting conversion tracking set up correctly? Contact Derick Downs — we set this up for every client as part of our onboarding process.