rechneronline.de
Free online calculators and reference articles for math, science, finance and everyday tasks, used by students, teachers and the public
Highlights
- New on EvolcAdded 2026-10-29
About rechneronline.de
Rechneronline publishes free online calculators and digital tools for mathematics, physics and chemistry, economics, time and dates, household, health, technology, cars and traffic, history, geography and art. The collection includes more than 300 geometry calculators and several thousand calculators in total, along with a glossary, a reference of number names and articles on the calculator topics.
The calculators are aimed at private and professional everyday use as well as school and vocational training. Teachers can generate arithmetic worksheets on the site. Pages display advertising labelled "Anzeige".
The first calculator page dates from 2004, and the rechneronline.de domain has been used since late 2005. The site is operated by Jürgen Kummer as a sole proprietorship from Buchenberg in the Allgäu region of Germany. The same operator also runs a perpetual calendar and an Allgäu travel guide, and publishes calculators on photovoltaics and electromobility. The site is available in German, English and Italian.
Product: Free online calculators and digital tools for mathematics, physics, finance, health, geometry and everyday calculations.
Jobs at rechneronline.de
Leadership
- Jürgen Kummer · FounderSource: company website
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Website technologies
Older, unverified list. Detection dates and supporting evidence are not yet available.
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