k-o.pro

SEO ROI Calculator

Enter organic traffic, conversion rate, AOV, and monthly SEO spend to get a clear ROI number.

Your numbers

100
Monthly conversions
from organic traffic
$15,000
Monthly revenue
from organic sessions
$13,000
Monthly net profit
after SEO investment
650.0%
SEO ROI
positive return

Annual projection

$180,000
Annual revenue
$24,000
Annual SEO cost
$156,000
Annual net profit
~5d
Estimated payback period
Time for monthly profit to cover one month of SEO investment

How this is calculated

Conversions = Sessions × (Conv. Rate / 100)

Revenue = Conversions × Average Order Value

Profit = Revenue − Monthly SEO Cost

ROI = (Profit / SEO Cost) × 100

Simplified model — actual ROI depends on attribution, sales cycle length, and organic vs paid traffic mix.

What it calculates

  • Monthly conversions from organic traffic
  • Monthly organic revenue (conversions × AOV)
  • Monthly net profit (revenue − SEO investment)
  • SEO ROI % — net profit divided by SEO spend

Use this in budget reviews

"SEO is hard to measure" is a weak answer. Monthly sessions × conversion rate × AOV − monthly spend = a number you can put in a slide and defend. Run the numbers even roughly — directional clarity beats no number.

How to use it

  1. Enter your current monthly organic sessions from GSC
  2. Add your site's average conversion rate and average order value
  3. Enter monthly SEO investment (agency retainer, tools, or internal cost)
  4. Read the ROI percentage — above 0% means you're generating positive return

Using it for projections

Replace current traffic with your projected target traffic (from keyword research) to model the value of a new ranking before you pitch the budget. Treat the output as an order-of-magnitude estimate — conversion rates vary by landing page, seasonality matters — but it's more defensible than gut feel.

Frequently asked questions

Is this SEO ROI calculator free?

Yes, free and with no signup.

What is a good SEO ROI?

It varies by margin and industry. Any positive return beats most paid channels over time, since organic clicks do not cost per visit once you rank. Many campaigns turn positive after 6 to 12 months rather than in the first quarter.

How is SEO ROI calculated?

Revenue from organic minus SEO cost, divided by SEO cost, as a percentage. Revenue is monthly sessions times conversion rate times average order value.

Related tools: CTR calculator and customer lifetime value calculator. Background reading: from data to action.