Terms of use
Use Calcr’s free calculators and games responsibly. Understand the informational purpose of results, service limits and permitted access.
Updated
Operator and contact
Calcr Team operates Calcr. Contact support@calcr.app with questions about these terms.
Using the public tools
Calcr provides free numerical tools, explanatory content and browser games. Public use does not require a subscription or visitor account. Use information you are entitled to enter, and avoid entering sensitive information when an invented example will serve the same purpose.
Do not attempt unauthorized administrator access, interfere with the operation of the website, upload malicious material or misrepresent Calcr's results as an official certification. The administrator-only area is not a public account service.
Results and reliance
Results depend on the inputs, selected mode, numerical precision and stated conventions. Explanations and examples help you check them; they do not guarantee that every possible use is error-free. Independently verify results used in important decisions. See the methodology and disclaimer.
Availability and external services
Features, content and availability can change as errors are fixed or tools are maintained. Browser storage is not a backup service. Clearing it can remove local game records or preferences.
If advertising or external links are present, those third parties operate their own services. An advertisement is not a recommendation or a prerequisite for calculating. Do not click an ad to support the website; engage with it only if the offer interests you.
Content and feedback
You may read the guides and use the tools for their intended purpose. These terms do not grant ownership of Calcr's code, branding or original explanatory text, or claim ownership of third-party material linked as a source. Refer to any separately supplied license when reusing material.
For a correction, follow the contact instructions and provide a reproducible, non-sensitive example. These terms do not limit rights you have under applicable law.