SEO & Marketing
Calculators
Free calculators for SEO, CRO, and content marketing. Built for growth teams who need fast, commercially-grounded decisions — no spreadsheets required.
SEO Performance Diagnostic Calculator
Diagnose GSC drops, plateaus & growth gaps
Paste two periods or a weekly/monthly trend from Google Search Console and get a ranked diagnosis — severity score, likely causes, recommended checks, and a clear next action.
SEO Revenue Forecasting
Model 12-month organic revenue with expert growth scenarios
Build a month-by-month SEO revenue forecast using conservative, realistic, or aggressive growth models. Factor in brand vs non-brand traffic splits, seasonal patterns, and your own CVR and AOV data.
SEO ROI Calculator
Turn your monthly SEO spend into a clear commercial return
Enter your SEO cost, organic visit volume, conversion rate, and average revenue per conversion. Instantly see ROI %, cost per visit, cost per conversion, and a full investment vs revenue breakdown.
Organic Traffic Value
Benchmark what your organic traffic would cost in paid search
Use matched paid search data as a CPC benchmark. Calculate the monetary value of your organic clicks, incremental value over paid, and CTR delta — the numbers that make the SEO vs paid case.
Content ROI Calculator
Measure the commercial efficiency of any content batch
Evaluate landing pages, blogs, images, or video against a 5-step framework: investment → reach → engagement score → conversions → revenue. Get a Scale / Optimise / Rework / Stop recommendation.
Percentage Change Calculator
Calculate % change and generate instant marketing report cards
Compute percentage change between any two values and export four ready-to-screenshot widget layouts — Period Compare, Headline Stat, Growth Bar, and % Spotlight — for decks and dashboards.
A/B Test Significance Calculator
Know when your experiment results are statistically valid
Enter control and variant visitor and conversion counts to calculate statistical significance, p-value, confidence interval, and minimum detectable effect. Stop guessing when to call a test.
Cost of Delay SEO Calculator
Quantify what waiting costs — in keywords, traffic, and revenue
Compare your domain against a competitor benchmark across DA, backlinks, keywords, and content. Model the revenue opportunity you can capture now vs 3, 6, or 12 months from now — with an auto-generated executive summary for board-level decision making.
ROAS Calculator
See exactly what your ad spend is returning
Calculate your Return on Ad Spend — enter ad spend and revenue to see your ROAS ratio and benchmark tier.
CAC Calculator
Know the true cost of every new customer
Calculate your Customer Acquisition Cost — enter marketing spend and new customers to see your CAC.
CPA Calculator
Measure the cost of every conversion
Calculate your Cost per Acquisition — enter marketing spend and conversions to see your CPA.
CPL Calculator
Find out what each lead is actually costing you
Calculate your Cost per Lead — enter marketing spend and leads generated to see your CPL.
CPC Calculator
Calculate the true cost of every click
Calculate your Cost per Click — enter total spend and clicks to see your CPC.
CPM Calculator
Measure your cost per thousand ad impressions
Calculate your CPM — enter spend and impressions to see your effective cost per thousand impressions.
Marketing Efficiency Ratio Calculator
Measure how hard your entire marketing budget is working
Calculate your Marketing Efficiency Ratio — enter total revenue and marketing spend to see your blended MER.
Payback Period Calculator
Find out how fast you recover customer acquisition cost
Calculate your payback period — enter CAC and monthly revenue per customer to see payback in months.
LTV:CAC Ratio Calculator
Validate the economics of your customer growth model
Calculate your LTV:CAC ratio — enter customer lifetime value and acquisition cost to assess your growth economics.
Funnel Drop-off Rate Calculator
Where are visitors leaving your funnel?
Calculate drop-off rates across up to 6 custom funnel stages. Visualise conversion loss with 4 board-ready widgets — built for E-commerce, SaaS, and lead gen teams.
A/B Test Sample Size & Duration Calculator
Calculate sample size and test duration before you run your A/B test
Estimate how many visitors and how many days you need to run a statistically valid A/B test. Supports conversion rate and revenue metrics, one-sided and two-sided testing, ROPE thresholds, and unequal traffic splits.
Want a custom measurement framework for your business?
Search Indicators builds bespoke SEO and growth measurement models — connecting traffic, conversions, and revenue into one clear commercial picture.
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