Privacy Policy
How Calculator Hub handles data — no accounts, no stored calculator inputs, cookieless analytics when enabled.
Last updated: June 22, 2026
Operator
Calculator Hub is operated by Hublo Technologies Pvt Ltd. This Privacy Policy describes how we handle information when you use our website and calculators.
Overview
Calculator Hub provides free material calculators. We do not require an account. Calculations and PDF downloads run in your browser — we do not store your project dimensions or results on our servers.
Information we collect
If you use our tools, we do not collect the numbers you enter into calculators or the PDFs you generate.
We may use cookieless analytics (for example Plausible) to count anonymous page views and events such as tool usage or PDF downloads. Those events do not include your input values.
If Google AdSense is enabled, Google and third-party vendors use cookies (including the advertising cookie) to serve ads based on your prior visits to this website or other websites. You can opt out of personalized advertising through Google Ad Settings at https://www.google.com/settings/ads or via https://optout.aboutads.info. We use a Google-certified consent management platform (CMP) where required by law so you can accept or reject ad personalization.
How we use information
Anonymous analytics help us understand which calculators are used so we can improve the site.
We do not sell personal information in the traditional sense. However, when personalized ads are enabled, the use of advertising cookies may be considered a 'sale' or 'sharing' under certain US state privacy laws. You can opt out via 'Your Privacy Choices' and we honor Global Privacy Control (GPC) signals.
Your Privacy Choices
Do Not Sell or Share My Personal Information: when personalized ads are enabled, the use of advertising cookies may be treated as a 'sale' or 'sharing' under certain US state privacy laws (such as California's CCPA/CPRA). You can opt out of ad personalization through the consent prompt where shown, through Google Ad Settings at https://www.google.com/settings/ads, or via https://optout.aboutads.info.
Global Privacy Control (GPC): we honor the GPC browser signal as a valid opt-out request where applicable law requires it.
You can also use ad blockers or browser privacy settings if you prefer not to see ads or third-party scripts.
Because we do not operate user accounts, there is no login data to access or delete on our systems.
Contact
Questions about this policy can be sent to calc@hublo.ai.