Last updated: January 2025
Pet Health Calc is committed to your privacy. All calculators on this site run entirely in your browser — nothing you enter is sent to any server or stored anywhere.
Every calculation on this site runs locally in your browser using JavaScript. Your pet's health data (weight, age, breed) is never transmitted, stored or shared. We take your privacy seriously.
We use browser localStorage only to remember your light/dark theme preference. This data never leaves your device.
We use Google Analytics (anonymised, aggregated) to understand site usage. Opt out via Google's opt-out tool.
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Some pages include Amazon affiliate links. We earn a small commission on qualifying purchases at no extra cost to you. We only recommend products we believe are genuinely useful for pet owners.
If you subscribe via our email form, your address is stored with Kit (ConvertKit). Unsubscribe anytime. We never sell email addresses.
Pet Health Calc provides general information only. Nothing on this site constitutes veterinary advice. Always consult a qualified veterinarian for health concerns about your pet. In an emergency, contact your vet or an emergency animal hospital immediately.
Privacy questions: privacy@pethealth.co.uk