Privacy Policy

The short version

Calculate All collects no personal data. There are no accounts, no sign-ups, and no forms that send your information to us. Every calculator runs entirely in your browser: the numbers you type never leave your device.

What we do not collect

• Calculator inputs. Loan amounts, investment figures, health measurements, and dates you enter are processed locally by JavaScript in your browser. They are never transmitted to our servers, because there is no server-side processing at all.
• Personal identifiers. We do not ask for your name, email, phone number, or address anywhere on the site.
• Tracking profiles. We do not use analytics cookies, advertising trackers, or fingerprinting to follow you across the web.

What stays on your device

A few features store data only in your own browser using localStorage — it never reaches us:

• Theme preference (dark or light mode).
• Favorites — the calculators you save with the ♡ button.
• History — recent calculations, so you can revisit them.
• Display name — an optional nickname for the profile popover.

Clearing your browser's site data removes all of it permanently. See our Cookie Policy for details.

Contact form

The contact page does not submit data to us directly. It composes an email in your own email application addressed to us — what you send is governed by your email provider's own privacy policy, and we use it only to reply to your message. We never sell, rent, or share correspondent email addresses.

Hosting and infrastructure

Calculate All is a static website hosted on Surge.sh. Like any web host, Surge may record basic technical logs (such as IP addresses and requested pages) to operate its service. We do not have access to, and do not request, any per-visitor data from these logs.

External links

Calculate All may link to external websites, including product links in some buying guides. We are not responsible for the privacy practices of those sites; please review their policies before sharing information with them. Product links may be affiliate links — see our Affiliate Disclosure.

Children's privacy

Calculate All is a general-audience reference site that collects no personal data from anyone, including children. Because there are no accounts and no data collection, there is nothing for a child to submit to us in the first place.

Changes to this policy

If our practices change — for example, if we add an optional newsletter or analytics in the future — this policy will be updated before the change takes effect, and the "Last updated" date at the top will change. Material changes will also be noted on the homepage.

Questions

Privacy questions: hello@calculateall.surge.sh.