SEO ROI calculator.

Project month-by-month revenue from SEO investment, see your break-even point, and compare against the equivalent Google Ads spend. The math that turns “maybe SEO” into a clear go/no-go.

Why SEO ROI is the conversation that should win.

SEO requires upfront investment with no immediate return — exactly the opposite of paid. A 12-month projection makes the patience worth it.

  1. 01
    SEO compounds, ads don't.Stop paying for ads and traffic disappears immediately. Stop paying for SEO and last year's content keeps ranking.
  2. 02
    Justify the spend.A "we should do SEO" conversation is much shorter when you can project 12-month revenue.
  3. 03
    See when it pays back.Most SEO investments break even in months 4–8. Knowing the timeline keeps you patient through month 3.
  4. 04
    Compare against PPC.PPC ROI typically caps at 200–400%; SEO at maturity hits 500–1,200%. The math gets compelling fast.

Calculate SEO ROI.

Updates live as you type. The CPC field is optional — fill it in to see what your organic traffic would cost in Google Ads.

Current monthly organic visitors (Google Analytics).

Visitors who become customers. Cross-industry: 2–5%.

Revenue per conversion (sale, lead value).

What you'd pay per click in Google Ads. Used to show equivalent ad value.

Agency fees + tools + content + link building.

Expected monthly increase. 5–15% is typical for active SEO.

How many months to project. 12 is a sensible default.

The SEO timeline.

  1. 01
    Months 1–3.Foundation: technical fixes, content creation, keyword research. ROI looks negative — that's normal.
  2. 02
    Months 4–6.First rankings appear, traffic starts growing. Approaching break-even.
  3. 03
    Months 7–12.Compound growth kicks in. Older content matures, new content stacks on top. ROI accelerates.
  4. 04
    Year 2+.The content library keeps ranking with minimal maintenance. ROI compounds — this is where SEO crushes PPC.

What to include in SEO costs.

  1. 01
    Agency or consultant fees.Monthly retainer or project-based work.
  2. 02
    Content creation.Blog posts, landing pages, product descriptions, video.
  3. 03
    SEO tools.Ahrefs, SEMrush, Screaming Frog — typically $200–500/mo combined.
  4. 04
    Link building.Outreach, digital PR, guest posting.
  5. 05
    Technical SEO.Developer time for site speed, structured data, schema.
  6. 06
    Internal time.Hours your team spends — easy to forget but real cost.

The biggest mistake in calculating SEO ROI is leaving out internal time. A blog post written by your team isn't free — it's their billable hours.

SEO vs. PPC ROI.

PPC ROI (average)200–400% (stops when you stop paying)
SEO ROI year 1300–500% (still climbing)
SEO ROI year 2+500–1,200% (compound effect)

The first 6 months of SEO usually look worse than the equivalent ad spend. Year 2 is where the math breaks decisively in SEO's favour.

Industry benchmarks.

E-commerce — 2.5% convAOV $85 · SEO $2,000/mo
SaaS / Software — 3% convAOV $150 · SEO $3,000/mo
Professional Services — 4.5% convAOV $500 · SEO $2,500/mo
Healthcare — 3.2% convAOV $200 · SEO $2,000/mo
Real Estate — 2.8% convAOV $3,000 · SEO $2,500/mo
Legal — 3.5% convAOV $1,500 · SEO $3,000/mo
Local Services — 5% convAOV $250 · SEO $1,000/mo
B2B — 2% convAOV $1,000 · SEO $3,500/mo

Frequently asked questions.

How do you calculate SEO ROI?+

SEO ROI = ((Revenue from SEO - Cost of SEO) ÷ Cost of SEO) × 100. For example, if SEO generates $20,000 in revenue and costs $5,000, the ROI is (($20,000 - $5,000) ÷ $5,000) × 100 = 300%.

What is a good ROI for SEO?+

A good SEO ROI is typically 300-500% or higher, meaning you earn $3-$5 for every $1 spent. Most businesses should expect to see positive ROI within 6-12 months. B2B and high-ticket services often see even higher returns.

How long does it take to see ROI from SEO?+

Most businesses see measurable ROI from SEO within 6-12 months. Competitive industries may take longer. The key advantage of SEO over paid ads is that returns compound over time, and content continues ranking and driving traffic long after it’s published.

Is SEO worth it for small businesses?+

Yes. SEO is one of the highest-ROI marketing channels for small businesses, especially for local search. A local business ranking #1 for “[service] near me” can generate leads worth thousands per month from a modest SEO investment.

How does SEO ROI compare to PPC ROI?+

SEO typically delivers 5-12x ROI over time, while PPC averages 2-4x ROI. The key difference: PPC stops generating traffic when you stop paying, while SEO traffic compounds. Most businesses benefit from both, with SEO providing long-term value and PPC for immediate results.

What should I include in SEO costs?+

Include all SEO-related expenses: agency or consultant fees, content creation costs, SEO tools (Ahrefs, SEMrush, etc.), link building costs, technical SEO fixes, and any internal staff time allocated to SEO.

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Numbers look good? Time to execute.

The projection is the easy part. Execution is where most SEO efforts die. I offer SEO retainers for local businesses and startups — technical foundation, content strategy, and monthly reporting that actually moves rankings.

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Built by Taro Schenker — full-stack developer who works with startups and local businesses.