Privacy Policy
This policy explains how Charles Law Calculator handles information when you use the gas law calculators and tools on this site.
No Account, No Server-Side Storage of Your Calculations
Charles Law Calculator is a free tool that requires no sign-up and no account. There is no login, no user profile, and no calculation history saved on any server, because there is no database behind this site to save it in.
In plain terms
Every number you type into a calculator on this site is processed entirely by JavaScript running in your own browser. Your inputs are never sent to a server, never logged, and never stored anywhere outside your own device. Close the tab and the values are gone.
That's a direct consequence of how the site is built — a static site with no backend and no database, so there is nowhere for the actual numbers you type into a calculator to be collected or retrieved from. Separately, this site does use Google Analytics to understand aggregate traffic (see Cookies below) — that's general visit data, not the contents of any calculator field.
Cookies and Analytics
This site uses Google Analytics (GA4) to understand aggregate traffic — which pages are visited, roughly how many people are on the site, which country or city a visit approximately comes from, device and browser type, and which site referred a visitor here. Google Analytics sets its own cookies (typically named things like _ga and _ga_*) to distinguish one visit from another.
This site does not set any advertising or remarketing cookies, and does not use cookies to build an advertising profile of you or follow you across other websites for marketing purposes. Google Analytics data is used only to understand how this site is used in aggregate, not to identify individual visitors.
You can opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on , or by blocking cookies generally in your browser's privacy settings. For details on how Google itself processes this data, see Google's Privacy Policy .
Third-Party Services
Pages on this site link to other gas law calculators hosted on this same site — for example, from one law's page to a related law or converter. Following those links keeps you within this site and this same privacy policy.
The one third-party service embedded on this site is Google Analytics, described above. No advertising networks are embedded, and this site does not sell or share visitor data with anyone for marketing purposes.
Children's Privacy
This site does not knowingly collect personal information from anyone, including children under 13, because it does not collect personal information from any visitor at all. The calculators can be used by students of any age without submitting any identifying information.
Changes to This Policy
This privacy policy may be updated occasionally to reflect changes to the site or to clarify existing wording. Any updates will be posted on this page with a revised "last updated" date below.
Last updated: August 20, 2026
Contact
If you have any questions about this privacy policy or how this site works, please get in touch through the contact page.