SEO Revenue Growth Calculator

How to use the calculator

Four revenue inputs, one growth rate, a 12-month trajectory. Model conservative and aggressive scenarios in seconds.

1. 01

   Enter your organic revenue baseline

   Add your current monthly organic sessions, session-to-lead conversion rate, average deal value, and sales close rate. For ecommerce, set close rate to 100% and deal value to average order value. These four numbers define your current organic revenue.

2. 02

   Set your monthly session growth rate

   This is the compound monthly growth rate you expect from your SEO and content investment. 3–5% monthly is realistic for an active programme; 8–10% for a high-velocity build. The slider shows the range 0–30% per month.

3. 03

   Read the trajectory outputs

   The results panel shows month-12 organic revenue, total revenue growth vs. today, and cumulative 12-month organic revenue. Cumulative revenue is often the most useful number for reporting – it shows total channel contribution, not just the end-state.

4. 04

   Review the month-by-month table

   Each row shows sessions, monthly revenue, month-over-month growth percentage, and cumulative revenue. The MoM growth column is consistent once compound growth kicks in – this is the compounding effect of SEO.

5. 05

   Stress-test with different growth rates

   Adjust the growth rate slider to model conservative (3%), realistic (5%), and aggressive (8–10%) scenarios. Compare cumulative revenue across scenarios to understand the range of outcomes before committing a budget.

Why use this calculator?

Related free tools

Who'll get the most out of this

• SEO Manager / Head of SEOProjecting organic revenue growth for quarterly planning and board reporting.
• CMO / Marketing DirectorBuilding the organic channel revenue forecast alongside paid and other channels.
• Content StrategistShowing how compounding content investment translates to cumulative revenue over 12 months.
• Investor / FounderModeling organic revenue trajectory before committing to a content and SEO programme.
• Agency LeadShowing a client what SEO revenue growth looks like month-by-month over the retainer period.

Frequently asked questions

• What does this SEO revenue growth calculator model?+

  The SEO revenue growth calculator projects organic revenue month by month, compounding sessions at a user-set monthly growth rate and converting them through your existing funnel (conversion rate, deal value, close rate). It outputs month-12 organic revenue, total growth vs. today, cumulative 12-month organic revenue, and a row-by-row trajectory table. It differs from an ROI calculator in that it focuses purely on the revenue trajectory without modeling investment cost or break-even.
• How do you calculate revenue growth from SEO?+

  Revenue growth from SEO = (projected month-N organic sessions × conversion rate × deal value × close rate) − (current sessions × conversion rate × deal value × close rate). The key variable is the session growth rate. Unlike paid channels where growth is bought at a fixed CPC, SEO growth compounds – each month's sessions become the base for the next month's growth. This calculator uses that compound model, which is why month-12 revenue can be significantly higher than a linear projection would suggest.
• What monthly SEO session growth rate should I use?+

  Monthly organic session growth rate benchmarks: 1–3% per month for a maintenance-level content programme on an established site. 3–6% for an active editorial calendar with consistent publishing and basic link acquisition. 6–10% for a high-velocity SEO programme with programmatic content, active link building, and technical improvements. Above 10% for a site with significant technical SEO wins, a new programmatic SEO layer, or a domain authority jump from a PR campaign. The compounding effect makes a difference: 5% monthly compounds to 80% annual growth, while 8% compounds to 151%.
• Why is cumulative 12-month organic revenue the right metric to report?+

  Month-12 organic revenue shows the run-rate at the end of the period but ignores all the revenue generated in months 1–11. Cumulative 12-month organic revenue shows total channel contribution – what organic actually delivered to the business during the measurement period. If your content programme costs $200,000/year and generates $600,000 in cumulative organic revenue, your SEO programme delivered a 3× return even if the month-12 run-rate is only $80,000/month. Reporting only month-12 understates the channel's contribution by 7–8×.
• How does SEO revenue growth compound?+

  SEO revenue compounds because each piece of content that ranks builds domain authority, which improves rankings for future content, which generates more links, which further improves authority. This creates a compounding loop where growth in months 1–3 is slow, months 4–6 accelerate, and months 9–12 often see the fastest growth – the opposite of paid channels that plateau or decline without continuous spend. The SEO revenue growth calculator models this correctly using compound monthly growth rather than linear growth.
• What's the difference between this and the Enterprise SEO ROI Calculator?+

  The Enterprise SEO ROI Calculator models investment vs. return – it takes your content spend, team cost, and tooling cost and calculates ROI%, break-even month, and net gain. This SEO revenue growth calculator focuses only on the revenue trajectory without any investment inputs. Use the ROI calculator when you're making the investment decision. Use this calculator when the investment is already set and you need to project organic revenue growth for planning, reporting, or forecasting.
• How do I set the close rate for ecommerce vs. B2B SaaS?+

  For ecommerce: set close rate to 100% (organic sessions convert directly to purchases) and deal value to your average order value. Conversion rate is your add-to-cart or purchase rate from organic sessions. For B2B SaaS: set conversion rate to your trial or demo request rate, close rate to your trial-to-paid or proposal-to-close rate, and deal value to ACV. For content-gated lead gen: set conversion rate to your content download rate, close rate to your lead-to-customer rate, and deal value to ACV.
• Can I use this calculator to project SEO revenue for a new site?+

  Yes, with caveats. A new site with no domain authority typically sees very slow growth in months 1–6 (often less than 1% monthly) before the compound effect kicks in. The 3–5% monthly default works better for sites with 12+ months of SEO history. For a new site, model two phases: months 1–6 at 1–2% monthly growth, then rerun with 4–6% monthly growth for months 7–12. The cumulative result over 12 months will be lower than the calculator shows for established sites, but months 7–12 will compound fast if the foundation was built correctly.
• How does content automation change the SEO revenue growth trajectory?+

  Content automation accelerates the organic growth rate in two ways: volume (publishing more pages per month means more indexed content and more ranking opportunities) and consistency (automation maintains publishing cadence when team capacity is constrained). A manual programme publishing 4 posts/month might grow at 3–4% monthly. An automated programme publishing 15–20 pieces/month with the same team can grow at 6–10% monthly. The SEO revenue growth calculator shows the compounding dollar impact of that difference over 12 months.
• How is this SEO revenue growth calculator different from other growth projectors?+

  Most SEO revenue projectors use a flat annual growth rate and divide by 12. This calculator uses compound monthly growth, which produces a different trajectory – slower early, faster late. The month-by-month MoM growth column in the table makes the compounding effect visible. The cumulative revenue output is also unusual: most tools show month-12 run-rate only, which systematically understates the channel's total value. Cumulative 12-month organic revenue is the number that belongs in a board deck.