Ana Fernández / SEO
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Resource of the week 3 scenarios · 12 months

The business case for your SEO project, in numbers

Before you ask for budget, it helps to walk in with the number already done. This calculator takes your organic traffic, your conversion rate and your value per customer, and projects 12-month incremental revenue, ROI and the month the investment pays for itself, across three growth scenarios.

  • Cumulative incremental revenue at 12 months
  • ROI percentage over the full year of investment
  • Estimated payback month, and it tells you honestly when 12 months isn't enough
  • Three scenarios: conservative +30%, medium +60% and ambitious +100%
Open the free calculator Free. Just name and email.
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12months projected

3 scenarios · 4 key outputs

Conservative+30% traffic
Medium+60% traffic
Ambitious+100% traffic

Results recalculate live as you move your assumptions, using a gradual month-over-month growth curve.

What's inside

From your data to the budget slide

01

Your real numbers

Organic traffic, conversion rate, lead close rate, value per customer and monthly investment. No hidden assumptions.

02

Three scenarios

Conservative +30%, medium +60% and ambitious +100% traffic growth at 12 months, with a gradual adoption curve.

03

The business case

Cumulative incremental revenue, total investment, ROI percentage and estimated payback month, ready for your deck.

The SEO projects that get funded aren't the ones that promise the most. They're the ones that show up with a defensible number, a conservative scenario and a payback date finance can review without blushing.

This calculator exists so you walk into that conversation with all three scenarios already calculated.

Ana Fernández, enterprise SEO consultant

The story behind it

SEO loses budget when it is presented in visits and rankings. Leadership approves when it sees revenue, return and timing.

This calculator is the structure I use to help teams build their business case, the same logic I use to discuss leads, CAC and growth with leadership.

Ana Fernández

Ana Fernández

Senior SEO Consultant at Previsible · Founder of My Rank Lab

~100

companies advised

1B+

visits generated

Fortune 500

and Y Combinator startups

Who it is for

  • Teams that need SEO budget approved
  • Marketing managers reporting to finance or the board
  • Founders comparing SEO with paid media

What you walk away with

You get three scenarios with revenue, ROI and payback month, ready for your next presentation.

Start here

Calculate the ROI of your SEO investment

Drop your name and email and the calculator unlocks instantly on this page. No waiting for an email.

Free resource · unlock with your email

SEO ROI Calculator

Project incremental revenue, ROI and the payback month of your SEO investment across 3 scenarios.

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Frequently asked questions

What do I need before using it?+

Four numbers: monthly organic traffic, conversion rate, average value per customer and monthly SEO investment. All of them come from analytics and your CRM.

Why doesn't growth show up in month 1?+

Because SEO doesn't work that way. The calculator ramps growth gradually month over month until it reaches the scenario percentage in month 12.

Which scenario should I present?+

Present all three. The conservative one protects your credibility, the medium one is usually realistic, and the ambitious one shows the ceiling of the channel.

Do you store my data?+

No, the calculator runs entirely in your browser. We only ask for name and email to give you access.

Want to validate these assumptions with your own data?

On enterprise projects we build the model with your real traffic, your competitive landscape and cluster-level potential, so the business case holds up to any question.

Let's talk

Guide

How SEO ROI is calculated

The base formula is ROI = (incremental organic revenue − SEO investment) / SEO investment × 100. Incremental revenue comes from additional organic traffic times conversion rate, close rate and average customer value.

The calculator projects it month by month for 12 months, because organic growth is gradual.

The data you need

All of it comes from analytics and your CRM.

Monthly organic traffic

Organic sessions in GA4 or clicks in Search Console.

Conversion and close rate

Share of visits that become leads and leads that become customers.

Customer value

Average order value or, better, customer lifetime value (LTV).

Monthly investment

Consulting fees, in-house team, tools and related development.

Why present three scenarios

Conservative (+30% traffic) protects your credibility, mid (+60%) is usually realistic and ambitious (+100%) shows the channel ceiling.

Framework built by Ana Fernández, an SEO and GEO consultant who has advised around 100 companies across Latin America, the US and Europe. About Ana·See our service: SEO strategy

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