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.
AI Visibility Calculator
Score your brand across every major AI platform
Measure how often your brand is mentioned across ChatGPT, Gemini, Perplexity, Claude and more. Get a weighted AI Visibility Score, benchmark against competitors and identify citation gaps.
Facebook Ads Cost Calculator
Model your full Facebook Ads funnel — from clicks to true net ROI
Calculate total sessions, raw inquiries, qualified leads, sequence completions, monthly sales, gross profit, ROAS, and net ROI from your Facebook Ads spend in one model.
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.
AI Traffic Forecast Calculator
Forecast your AI referral traffic for the next 3 months
Enter 3 or 6 months of historical sessions, purchases and revenue from ChatGPT, Perplexity, Claude and Gemini to get month-by-month projections and growth insights.
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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