Organic traffic value calculator
Find out what your organic traffic would cost if you had to buy it — and make the business case for SEO in terms any budget holder understands.
Enter your monthly organic sessions and the average CPC for your keywords. Both the sessions and value fields update each other — enter either one to calculate the other.
Organic traffic value calculator inputs and results
Your numbers
Organic search sessions only — from Google Search Console or your analytics platform.
Average cost-per-click for your keywords in Google Ads. Use Keyword Planner or Ahrefs data.
General ~$0.50–1.50 · B2B ~$2–5 · Finance ~$3–8
Enter a target value to find the sessions needed at the current CPC.
Traffic value
Monthly equivalent ad spend
$30,000
25,000 sessions at $1.20 CPC
Sessions to reach $100,000/month
83,333
at current CPC — or grow CPC by targeting higher-value keywords
How organic traffic value is calculated
Traffic value = organic sessions × average CPC. The principle is that each organic click is worth the same as a paid click for the same keyword — you're just not paying for it. Multiplying your session count by the average CPC for your ranking keywords gives an advertising cost equivalent: what a competitor would pay to buy the same traffic via Google Ads.
This methodology is also used by Ahrefs (Traffic Value), SEMrush (Traffic Cost), and Moz for their organic value metrics. It's the most common way to quantify SEO ROI in business terms, because paid media budgets are already denominated in these figures — it translates SEO performance into the same currency as ad spend.
The two levers are traffic volume and keyword value. Growing sessions at the same CPC scales value linearly. Shifting your content mix toward higher-value keywords — informational articles that attract users closer to a purchase decision — increases your effective CPC without requiring more traffic. Both strategies are valid; the right balance depends on your content's monetisation model.
About this tool
This tool estimates the advertising equivalent value of your organic search traffic by multiplying monthly sessions by the average cost-per-click for your keywords — the same methodology used by Ahrefs, SEMrush, and Moz for their "Traffic Value" metrics. Inputs: monthly organic sessions and average CPC for your niche. Both fields update each other in real time — enter sessions to see value, or enter a target value to find the sessions needed. Outputs: monthly traffic value, annual traffic value, and daily average.
Frequently asked questions
How is organic traffic value calculated?
Traffic value = organic sessions × average CPC. The logic is straightforward — if you had to buy this traffic via Google Ads at the average cost-per-click for your keywords, how much would you spend? A site with 50,000 monthly organic sessions at an average CPC of $1.50 has traffic worth $75,000 per month in paid search terms. This is the methodology Ahrefs uses for "Traffic Value" in their Site Explorer, and SEMrush uses a similar approach for their own traffic value metric.
What CPC should I use?
Use the blended average CPC for the keywords you actually rank for, weighted by traffic. The easiest way to find this is in Google Search Console (average CPC isn't shown, but you can check Google Keyword Planner for your top keywords) or from Ahrefs/SEMrush's keyword data for your ranking pages. Rough benchmarks by niche — finance and legal: $3–8, insurance: $5–15, B2B SaaS: $2–5, health: $1.50–3, general interest: $0.50–1.50, news/entertainment: $0.20–0.60. In the absence of specific data, $1–2 is a reasonable midpoint for a mixed-topic content site.
Is this the actual monetary value of my traffic?
No — it's an advertising cost equivalent. Organic traffic doesn't generate this amount as revenue; it shows what the same traffic would cost if you had to buy it via paid search. The number is most useful as a proxy for the value of your SEO investment — if your organic traffic is worth $80,000/month in equivalent paid search spend, that contextualises the ROI of content and link-building efforts. It's also the metric investors and acquirers use when valuing content sites, alongside multiples of actual revenue.
Why does my Ahrefs traffic value differ from this calculator?
Ahrefs uses their own keyword database to assign CPC values per keyword based on what their platform tracks, which may differ from Google Ads actual costs. They also count all ranking keywords, not just those driving clicks — if you rank for a keyword in position 20, they may assign it a CPC even though almost no one clicks through. This calculator uses your actual session data (which reflects real clicks) and your own CPC estimate, so it reflects actual traffic rather than estimated ranking potential.
How do I use this to justify an SEO budget?
Compare the monthly traffic value to the cost of generating it. If your organic traffic is worth $50,000/month in equivalent ad spend, and your SEO effort (content creation, link building, tools) costs $5,000/month, the effective "ROAS" of your SEO investment is 10:1. This framing is useful when presenting SEO value to a board, investor, or sceptical stakeholder who understands paid media better than organic. It's also useful as a baseline for acquisition conversations — many content site buyers pay a multiple of annual traffic value.