Privacy Policy

Privacy Policy

At Smart Calculators, we take your privacy seriously. This page explains what data we collect, what we use it for, and what rights you have over it.

The short version: the calculations you perform never leave your browser, we use analytics cookies and — only with your consent — third-party advertising, we include some affiliate links to online stores, and we never sell your personal data.

Data you enter in the calculators

The values you type into the calculators (amounts, percentages, dates, etc.) are processed entirely in your browser. They are not sent to any server or stored in any database. When you close the page, that data is gone.

We have no access to the numbers you enter or the results you get.

Browsing data and analytics

We use web analytics tools to understand how the site is used so we can improve it. These tools may collect information such as:

• Pages visited and time spent
• Approximate country and city (derived from your IP address, which is anonymized)
• Device type, browser, and operating system
• Referring page (where you came from)

This data is used exclusively to improve the site experience and is not used to personally identify you. We do not use your analytics data to build an advertising profile of you.

Advertising

To keep this calculation platform free, we show two kinds of advertising:

• Display ads from an advertising network. This is a third-party network that uses cookies and similar technologies to process technical data (such as your IP address and browsing data) in order to serve ads. These ads only load after you give your consent. In the European Union, EEA, and the United Kingdom they are blocked until you accept them in the consent banner; you can accept, reject, or change your mind at any time (see the "Cookies and consent" section below).
• Affiliate links to online stores (such as Amazon and AliExpress). These are static images and links shown in all countries. If you click one and make a purchase, we may earn a small commission at no extra cost to you. These links do not set our own cookies or run third-party scripts on our pages; the destination store applies its own cookies and privacy policy once you click through.

Location

We use a third-party geolocation service (GeoJS) to estimate your approximate country from your IP address. We use this for two things only:

• To decide whether we need to show you the consent banner (required in the European Union, EEA, and the United Kingdom).
• To choose which affiliate store is most relevant to your region.

We do not store a precise location and we do not use this to identify you personally.

Cookies and consent

The site uses:

• Technical cookies necessary for its operation (such as your language preference).
• Analytics cookies to measure site usage.
• Third-party advertising cookies, which are only loaded after you consent.

If you are in the European Union, EEA, or the United Kingdom, a consent banner lets you accept or reject advertising cookies before any are set. Your choice is stored locally in your browser so we can remember it. You can change or withdraw your consent at any time using the "Cookie settings" link in the footer.

Third-party services

To operate the site we rely on external providers for:

• Web hosting and content delivery.
• Web analytics (measuring visits and site usage).
• Geolocation (estimating your country from your IP, via GeoJS).
• Advertising, which serves ads only after consent.
• Affiliate programs (such as Amazon and AliExpress), which pay us a commission on qualifying purchases.

These providers process technical data (such as your IP address and browsing data) in accordance with their own privacy policies. We do not share the numbers you enter into the calculators with any of them.

Account data (future)

Currently, no account is needed to use the calculators. In the future we may offer optional features (such as saving favorites) that require registration.

If we implement user accounts, the personal data requested (such as email) will be used exclusively for the operation of those features. We will not send marketing emails without your consent.

Your rights

If you are in the European Union, the General Data Protection Regulation (GDPR) grants you the following rights:

• Right of access: know what data we hold about you.
• Right of rectification: correct inaccurate data.
• Right of erasure: request that we delete your data.
• Right of portability: receive your data in a structured format.
• Right to object: object to the processing of your data.
• Right to withdraw consent: revoke advertising consent at any time via the "Cookie settings" link.

To exercise any of these rights, contact us through the contact page.

Children

Smart Calculators' tools are general-purpose and do not collect personal data from any user. There is no age restriction for using the calculators, as no registration is required and no identifying data is collected.

Changes to this policy

We may update this privacy policy to reflect changes in our practices or in applicable legislation. When significant changes occur, we will update the date on this page.

Last updated: July 2026.

Third-party services

These providers process data when you visit the site. The list is generated from the site's own configuration, so it always reflects what actually loads.

Privacy FAQ