WEB & SEO STUDIO

ROI Calculator

18 practical tools for websites, SEO, text and design — fast, free and local in your browser.

Business / ROI

Website-ROI berechnen

Aktuell / Monat10.000,00 €
Zusätzlich / Jahr60.000,00 €
GUIDE

Web & SEO Tools

A practical collection of utilities for content, search optimization, design and everyday web calculations.

How to use this tool

Select a utility, complete the required fields and then copy or download your result.

Frequently asked questions

Is this tool free?

Yes. You can use it free of charge and without registration in your browser.

Are my inputs stored?

The calculation runs in your browser. Inputs are not permanently stored for the tool to work.

Does it work on mobile devices?

Yes. The interface is optimized for phones, tablets and desktop computers.