Free tools
Free marketing tools and calculators
Free calculators and writing tools for marketers and business owners: conversion rate, ad ROI, AdSense earnings and an online text editor, plus a mortgage calculator and an emoji mixer. Everything runs in your browser, with no sign-up.
Marketing calculators
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Conversion
Conversion rate calculator
Find out what share of your visitors become customers, and what a small improvement is worth.
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Advertising
Ads ROI calculator
Plan an ad budget: clicks, leads, customers, revenue and return on ad spend from your cost per click and conversion rates.
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Publishers
AdSense calculator
Estimate daily, monthly and yearly AdSense earnings from your page views and page RPM, or from your CTR and CPC.
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Get in touch
Want us to run the numbers?
Tell us what you want to improve: rankings, conversions or ad spend. A specialist reads it and replies by email.