SEO Planning Calculators
Supplied assumptions · No API · No automatic forecast
Understand the numbers behind your plan
Calculate observed click-through rate, model campaign contribution ROI and itemize a campaign budget. Every result uses figures you supply, with visible formulas and no ranking or revenue promises.
Your figures stay in the isolated workspace. This does not connect to analytics, retrieve prices, verify attribution or store projects. Downloads may contain sensitive business assumptions.
Questions about the calculators
Do these calculators fetch traffic, prices or rankings?
No. You supply every figure. CTR uses your own clicks and impressions; target clicks, ROI and costs are scenarios, not automatic analytics, marketplace quotes or ranking forecasts.
What does campaign contribution ROI mean?
Modeled revenue is multiplied by your contribution margin before campaign spending. Campaign costs are then subtracted, and the net contribution is divided by campaign spending. This is not revenue-only ROAS or return on all business costs. Do not include the same campaign costs in both your margin and campaign budget.
What assumptions apply to the ROI scenario?
Monthly incremental clicks, conversion rate, revenue per conversion and contribution margin stay constant for the selected months. Modeled conversions can be fractional. Seasonality, growth, attribution, time value, tax and omitted costs are not verified or modeled. Results are planning arithmetic, not financial advice or guaranteed returns.
What happens when a denominator is zero?
Observed CTR is unavailable with zero impressions; campaign ROI is unavailable with zero campaign spending; cost per placement is unavailable with zero placements. Each undefined result includes a reason instead of an invented percentage or infinity.
Are my figures stored or converted between currencies?
No. Calculations run in an isolated browser workspace with no uploads or project storage. Use one currency consistently; selecting its label does not perform currency conversion. The surrounding public page makes normal site requests. Local exports contain your supplied figures and should be reviewed before sharing.