Privacy

The calculator runs entirely in your browser. The numbers you type are not sent anywhere or stored.

If you sign up for launch updates, your email address is handled by our email provider and used only to send Slabs & Sums updates. Every email has an unsubscribe link.

This site may use privacy-friendly analytics that count page views without cookies or personal data.

Some links on this site are paid links to other stores, such as TCGplayer or Amazon. They're marked where they appear. If you buy through one, Slabs & Sums may earn a commission at no extra cost to you. Those stores have their own privacy policies and may set their own cookies once you're on their site.

If you leave a tip, the payment is handled by the tip platform. We don't see or store your card details.

Questions: contact us through the shop where you found Slabs & Sums.