Privacy Policy

At Perimeter Calculator (https://perimetercalculator.com/), we take your privacy seriously. This policy explains what information we collect, how we use it, and what rights you have.

The short version? We collect very little personal information, we don’t sell your data, and we’re transparent about everything we do.

Information We Collect

What We Currently Collect

Right now, we keep things simple. Here’s what we collect:

1. Usage Analytics (via Google Analytics)

  • Pages you visit on our site
  • How long you spend on each page
  • What device and browser you’re using
  • Your general location (country/city level, not exact address)
  • How you found our website (search engine, direct link, etc.)

Why we collect this: To understand how people use our calculators and make improvements.

2. Calculator Input Data

  • The numbers you enter into calculators
  • Which calculators you use

Important: This data is processed locally in your browser and is NOT stored on our servers. Once you close the page, it’s gone.

What We DON’T Collect (Currently)

  • Your name
  • Your email address (unless you contact us)
  • Your exact location or IP address
  • Personal identification information
  • Financial information
  • Login credentials (we don’t have user accounts)

We don’t require sign-ups, so we don’t collect that kind of information.

How We Use Your Information

We use the information we collect to:

  • Improve our calculators – Understanding which tools are most used helps us prioritize improvements
  • Fix bugs and issues – Analytics help us spot technical problems
  • Add new features – Usage patterns guide what calculators we build next
  • Optimize performance – Making sure the site loads fast on all devices

We DO NOT:

  • Sell your data to anyone
  • Share your information with third parties (except service providers like Google Analytics)
  • Track you across other websites

Cookies and Tracking

What Are Cookies?

Cookies are small text files stored on your device. They help websites remember your preferences and analyze how you use the site.

Cookies We Use

Google Analytics Cookies:

  • These track how you use our website
  • They help us understand visitor behavior
  • They’re anonymous – we can’t identify you personally

How to Control Cookies: You can disable cookies in your browser settings. However, this might affect how some features work.

Most browsers let you:

  • Block all cookies
  • Delete existing cookies
  • Allow cookies only from specific websites

Third-Party Services

We use some external services to run our website:

Google Analytics

  • What it does: Tracks website usage and visitor statistics
  • What they collect: Anonymous browsing data
  • Their privacy policy: policies.google.com/privacy

Your Rights and Choices

You have rights when it comes to your data:

Right to Access

You can ask what data we have about you (though we collect very little personal data).

Right to Deletion

You can request deletion of any data we have (contact us at perimetercalculator@gmail.com).

Right to Opt-Out

You can:

  • Disable cookies in your browser
  • Use browser extensions to block analytics
  • Use privacy-focused browsers

Right to Information

You can ask questions about our privacy practices anytime.

Data Security

We take reasonable steps to protect any data we collect:

  • Our website uses HTTPS encryption
  • We don’t store sensitive personal information
  • Analytics data is handled by reputable providers (Google)
  • We regularly update our security practices

Children’s Privacy

Our website is safe for all ages. We don’t knowingly collect personal information from children under 13.

If you’re a parent and believe your child has provided us with personal information, contact us immediately at perimetercalculator@gmail.com, and we’ll delete it.

Changes to This Policy

We might update this privacy policy as our website grows. When we do:

  • We’ll update the “Last Updated” date at the top
  • Major changes will be announced on our website
  • Your continued use means you accept the updated policy

We recommend checking this page occasionally to stay informed.

What Happens If We Add New Features?

As we grow, we might add:

  • User accounts (optional)
  • Email newsletters (opt-in only)
  • Advertising (we’ll update this policy first)
  • More analytics tools

Our promise: We’ll always update this policy before collecting new types of data, and we’ll always keep it transparent.

Contact Us About Privacy

Have questions or concerns about privacy? Want to:

  • Request data deletion?
  • Ask what information we have?
  • Report a privacy concern?
  • Suggest privacy improvements?

Email us: perimetercalculator@gmail.com

We’ll respond within 48 hours.

Our Privacy Principles

Here’s what guides our privacy practices:

  1. Transparency: We tell you exactly what we collect and why
  2. Minimalism: We only collect what’s necessary
  3. Security: We protect whatever data we have
  4. Control: You can opt-out or delete your data
  5. No Surprises: We’ll always inform you about changes

California Privacy Rights

If you’re a California resident, you have specific rights under CCPA:

  • Right to know what personal information is collected
  • Right to delete personal information
  • Right to opt-out of sale of personal information (we don’t sell data)
  • Right to non-discrimination

Contact us at perimetercalculator@gmail.com to exercise these rights.

European Union Users (GDPR)

If you’re in the EU, you have rights under GDPR:

  • Right to access your data
  • Right to rectification
  • Right to erasure (“right to be forgotten”)
  • Right to restrict processing
  • Right to data portability
  • Right to object

Contact us at perimetercalculator@gmail.com for GDPR-related requests.

Summary (TL;DR)

  • What we collect: Mostly just anonymous usage data via Google Analytics
  • What we don’t collect: Personal information, emails (unless you contact us), exact locations
  • What we do with it: Improve our calculators and website
  • What we don’t do: Sell data, share with third parties (except Google Analytics), track you across websites
  • Your control: You can disable cookies, delete data, or opt-out anytime

This privacy policy is effective as of 01/01/2026 and will be updated as our services evolve.