Free marketing tools & calculators
Quick, no-nonsense calculators and SEO tools for the work marketers do every day. Everything works instantly in your browser — nothing to install, no account, and your data never leaves the page.
Marketing calculators
CPM Calculator
Work out your cost per 1,000 impressions in seconds.
Open toolROI Calculator
See the return on any campaign or investment as a percentage.
Open toolLTV Calculator
Estimate how much a customer is worth over their whole relationship.
Open toolCTR Calculator
Turn clicks and impressions into a click-through rate.
Open toolConversion Rate Calculator
Find what share of visitors turn into conversions.
Open toolROAS Calculator
Measure return on ad spend — plus your break-even ROAS.
Open toolCPC Calculator
Divide spend by clicks to get your true cost per click.
Open toolCAC Calculator
Find what it really costs to win one new customer.
Open toolEngagement Rate Calculator
Measure how much your audience interacts with your content.
Open toolSEO tools
Schema Markup Generator
Build valid JSON-LD structured data — no code required.
Open toolFAQ Schema Generator
Turn questions and answers into FAQPage JSON-LD.
Open toolSERP Snippet Preview
See how your title and description look in Google results.
Open toolMeta Tag Generator
Generate SEO, Open Graph, and Twitter meta tags in one go.
Open toolOpen Graph Generator
Build Open Graph & Twitter tags with a live social preview.
Open toolRobots.txt Generator
Create a valid robots.txt to control crawler access.
Open toolHreflang Generator
Generate hreflang tags for multilingual and regional pages.
Open toolMeta Description Length Checker
Check title and meta description length against SERP limits.
Open toolStop running the numbers by hand
These calculators tell you where you stand. Lunroo’s AI agents do something about it — researching, writing, and publishing SEO content that improves the metrics above, on autopilot, with your approval on everything.