How the content is made
This page describes how the pages on Quaestio are made and what you can expect from them. How the calculations are tested is described on the How the tools are checked page.
What a page should contain
Every tool should give the answer at the top, explain how it is worked out and say where the information comes from.
Many pages follow the same template and differ only in their numbers, among them the pages for pairs of units and currencies. A large share of them are kept out of search engines. They remain on the site and work for anyone who needs them.
Sources
Information that can be backed up is backed up with those responsible for it: public authorities, statistics offices, legislation, standards and scientific work. The sources are linked under the tool. In the historical units, where sources sometimes disagree, both figures are shown rather than an average.
Tools and review
The texts are written with the help of AI tools and then checked against the sources. Every calculation has automated tests, which run before every change.
Languages
Each language version follows its own language’s conventions for numbers, dates and punctuation, and uses the country’s own rules and sources where they exist, for example for VAT, public holidays and take-home pay.
Corrections
A mistake is corrected in every language at once, and a test is added so that it cannot come back. Larger corrections are listed on the Corrections page.
Independence
Nobody pays to appear in a tool or for what it says.