Privacy notice

Your inputs stay with you.

Last updated: October 2, 2026.

Calculator data

Calculations run locally in your browser. PocketMath does not transmit calculator inputs to its server or store them in a database. The site has no account system and does not use browser storage to save your calculator entries.

Hosting and technical data

Cloudflare hosts this site and may process technical request data such as IP addresses, browser information, and access times to deliver and protect the service. See Cloudflare's privacy policy for details.

Google advertising

This site includes Google AdSense code. Google and its partners may use cookies and related technologies to serve, measure, or personalize advertisements based on visits to this and other websites, subject to applicable settings and consent requirements. Calculator input values are not included in requests made by PocketMath.

Learn more about how Google uses information from partner sites. You can manage personalized advertising through Google My Ad Center and control cookies through your browser settings.

Contact messages

If you email us, your email address and message will be processed to respond to your request. Please avoid sending sensitive personal information.

Questions

The site operator is Fumiya Kobayashi in Japan. For privacy questions, contact fmfm.stars@gmail.com.