Privacy and terms of use
This site does not require registration and does not collect personal data through forms. The calculators run entirely in your browser and the values you type are not sent to any server. Your language choice may be stored in your browser's local storage.
Advertising and cookies
This site shows Google AdSense ads to stay free. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on those visits.
You may opt out of personalised advertising in Google Ads Settings and learn more about how Google uses data on partner sites: adssettings.google.com · policies.google.com/technologies/partner-sites
For visitors in the European Economic Area, the United Kingdom and Switzerland, cookie consent is requested through a certified consent platform before any personalised ad is shown. You can refuse or withdraw consent at any time.
Visitor statistics
We may use Google Analytics to count visits and understand which pages are most useful. This data is aggregated and does not identify you personally.
Technical disclaimer
The tools and texts are for education and preliminary estimates. Results depend on simplifying assumptions and do not replace design work, laboratory analysis, technical standards or the judgement of a qualified professional. The author accepts no liability for decisions based solely on these calculations.
Contact
Questions about this policy can be sent through the contact shown on the About page.