Pet care,
by the numbers.
Medication dosing and size prediction to care for your animals with confidence. Free, instant, and private.
Jean Borg
Founder & developer · How I build these →
Pet care · example
Benadryl dose
Dose
25 mg
1 mg/lb · 25 lb dog
3
Pet care tools
100%
Free, no sign-up
0
Data stored
1 hr
To build a request
All 3 tools
Browse every pet care calculator.
Transparent math
Care figures
you can check.
No black boxes. Every tool shows the exact method or formula it used – so you can check it, trust it, and learn it.
Try the Benadryl Dosage for Dogs ›# Weight-based dose
dose = body weight × mg per kg
# Adult size
predicted from breed & puppy weightQuestions
Pet care questions.
Are these pet care calculators really free?
+
Yes – every one is completely free, with no sign-up, no account, and no paywalled results.
How accurate are the results?
+
They use standard weight-based guidance and are estimates only – not veterinary advice. Always confirm doses with your vet.
Is my data saved anywhere?
+
No. Every calculation runs locally in your browser – nothing you enter is stored or sent anywhere.
Can you add a pet care calculator I need?
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Yes – request it via the contact page and it can be built and made live fast, free of charge.
The developer
Built by a real person.
Jean Borg
Founder & developer · freecalculators.pro · Malta
I build and maintain every calculator on this site myself, from my desk in Malta. No faceless company and no outsourced content – each tool is coded by hand, shows the exact formula it uses, and gets fixed the moment something’s off. Need a calculator that isn’t here yet? Email me and it’s usually live within the hour, free.
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