How to Measure the ROI of SEO in 3 Steps

Mar 31st 2025
seo roi three steps

Sure, traffic, conversions, and sources are great for measuring SEO performance—but if you really want to know whether your SEO efforts are paying off, it’s time to talk about the big kahuna: SEO return on investment (ROI).

Measuring ROI gives your SEO strategy financial context. It helps you prove that those juicy blog posts and optimized pages are doing more than ranking—they’re bringing in real results like leads, sales, and growth. Ready to calculate the value? Let’s break it all down:

  • What is SEO ROI?
  • Why measuring SEO ROI is a game changer
  • 3 steps to measuring SEO ROI
  • Alternate approach: User purchase journey
  • Common ROI calculation challenges
  • FAQs about SEO ROI

Need pro help getting a better return from SEO? Contact us online or call (916) 223-0367 to learn about our custom SEO plans.

What is SEO ROI?

SEO ROI measures how much revenue your search engine optimization efforts bring in, compared to what you spent. It’s calculated using a classic formula:

(Gain from Investment – Cost of Investment) / Cost of Investment

Input your SEO revenue, subtract your SEO costs, and divide the result by your total SEO costs. That’s your ROI. Boom—data-driven clarity!

Why Should You Measure SEO ROI?

Knowing your SEO ROI helps you cut through the noise and get real about what’s working. Here’s why it matters:

  • To convince leadership: Speak their language (money). A good ROI makes a strong case for continued investment.
  • To make smart strategy moves: Know which keywords, channels, and pages bring in the cash—and double down on them.
  • To track success over time: SEO is a long game. ROI helps prove it's worth playing.

How to Measure SEO ROI

Let’s walk through the 3 steps to calculating your ROI from SEO:

  1. Calculate your total SEO investment
  2. Set up conversion tracking (in GA4)
  3. Calculate your return using the SEO ROI formula

1. Calculate Your Investment

Add up every dollar you’re putting into SEO. This includes:

  • In-house SEO staff
  • Agencies and freelancers (hi, from Blumoo Creative!)
  • SEO tools and software
  • Content promotion or link-building services

2. Set Up Conversion Tracking

To measure ROI, you’ve got to track how SEO leads to revenue. Enter Google Analytics 4.

Ecommerce Tracking

If you sell products online, use GA4’s ecommerce tracking tools to measure revenue from organic traffic:

  1. Set up ecommerce events in GA4
  2. Navigate to Reports > Monetization > Ecommerce purchases
  3. Filter by organic traffic
  4. Click the “Insights” button for detailed conversion value

[Insert ecommerce screenshot]

Lead-Based Tracking

If you generate leads (not direct sales), assign estimated values to those conversions:

  1. Set goals in GA4 for form submissions, quote requests, calls, etc.
  2. Assign values based on past performance

How to assign value:

  • Lead-to-sale conversion rate (e.g., 25 out of 100 = 25%)
  • Average sale value (e.g., $200)
  • Lead value = (Total revenue from sales ÷ Total number of leads)

[Insert lead tracking screenshots]

3. Calculate SEO ROI

Once you’ve got the data, plug it into the formula:

Gain from Investment: $704,087.50
Cost of Investment: $10,000

ROI = (704,087.50 – 10,000) / 10,000
ROI = 694,087.50 / 10,000
ROI = 69.40875 × 100 = 6940.875%

Yes, that’s a nearly 7000% return. (Cue the happy dance.)

Alternate Method: User Purchase Journey

Check out Reports > Monetization > User purchase journey in GA4. It shows the paths users take before converting—perfect for understanding multi-touch attribution.

[Insert journey report screenshot]

Challenges in Measuring SEO ROI

  • SEO takes time: You might not see ROI for 4–6 months.
  • It’s not always linear: Revenue doesn’t instantly follow rankings.
  • Retention is tough to measure: SEO helps keep customers, but that value is hard to quantify.

SEO ROI FAQs

When should I measure SEO ROI?

Start looking at monthly, quarterly, and yearly intervals. Expect delayed results during the first 3–6 months.

How do I calculate SEO ROI again?

Use this formula:

(Gain from Investment – Cost of Investment) / Cost of Investment

What’s a good SEO ROI?

It varies. One company might be happy with 200%, while another aims for 600%+. Set a baseline that makes sense for your goals and scale from there.

Want Massive ROI from SEO? Call Blumoo Creative

Whether you're just getting started or ready to maximize your growth, Blumoo Creative builds SEO strategies that drive real results (not just rankings). Let’s turn that investment into serious revenue.

Click here to get a free quote or call us at (916) 223-0367.

thumbnail pic of Gregg Moore

Written by Gregg Moore

Gregg Moore is the founder/owner of Blumoo Creative, a digital marketing company. A ridiculously hard-working designer, developer & SEO specialist. He's also a bona fide master at eating chicken wings and watching sports at the same time! @GreggMoore23

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