Cookie Policy
Local storage (always on, never shared)
| Key | Purpose |
|---|---|
| sc:theme | Light or dark mode choice |
| sc:precision | Number of significant figures |
| sc:recent | Your recent conversions |
| sc:favorites | Conversions you saved |
Advertising and analytics cookies (consent-based)
Google AdSense and, if enabled, Google Analytics may set cookies such as __gads, __gpi, _ga
and _ga_*. In the EEA, UK and Switzerland they are only used for personalisation and measurement after you consent.
Without consent, Google Consent Mode v2 limits ads to non-personalised ads and does not set advertising cookies.
Changing your choices
Use “Privacy choices” in the footer to reopen the consent dialog. You can also delete cookies and site data in your browser settings; the site works without them.
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