Your worksheet stays with you.

Calculator data

Inputs are processed in your browser and kept only in the current page. The calculator code does not send these inputs to a server or store them in cookies or local storage. Exporting creates a CSV download on your device. Reloading restores the example inputs.

Page requests

This site is hosted on Cloudflare Pages. Your browser sends page and asset requests through Cloudflare. Cloudflare may process technical request information, including IP addresses, to deliver and protect the site. See Cloudflare’s privacy policy for its practices. Calculator inputs are processed locally in your browser and are not included in those page requests.

External links and embedded videos

Opening Steam, YouTube, Google or another external source takes you to that service, where its own policies apply. Some guides embed YouTube videos through the official privacy-enhanced player at youtube-nocookie.com. The player is lazy-loaded — it only contacts YouTube after you scroll to it — and nothing autoplays. When it loads, YouTube receives the request and applies its own terms; see Google’s privacy policy. The Profit Lab may also load the advertising described below.

Advertising

When enabled, eligible pages request Adsterra banner scripts from highrevenueformat.com. Your browser connects to the provider and its advertising partners to retrieve advertisements. These services may process technical request information, including IP address, browser information and referring page, and may use cookies or similar technology. See Adsterra’s privacy policy for its practices. Advertising is not loaded on this privacy page, our about page, source directory or error pages.

Ad delivery may depend on your browser settings, location and provider availability. This site does not currently provide a dedicated advertising-consent interface.

Changes to this notice

This notice will be updated if our use of advertising or analytics changes.

Last reviewed: 30 September 2026.