Tools

PawSafe calculators

Every tool below runs entirely in your browser. Pick a calculator, read the assumptions, and change any default that does not match your situation.

Pet nutrition

Dog & Cat Daily Calorie & RER/DER Nutrition Calculator

Determine scientifically precise daily calorie requirements (kcal/day) for dogs and cats using veterinary RER formulas and WSAVA life-stage energy multipliers.

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Pet health

Dog & Cat Daily Water Requirement & Dehydration Calculator

Determine how much fresh water your dog or cat should drink daily (ounces and milliliters) and learn how to perform a 5-second dehydration skin-tent test.

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Pet toxins

Dog Chocolate Toxicity & Theobromine Dose Calculator

Enter your dog's body weight, chocolate type, and amount eaten to evaluate methylxanthine toxicity (mg/kg), clinical risk level, and immediate emergency steps.

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Our tool standards

No hidden inputs. Every assumption is visible and editable.
No data collection. Calculations run client-side; nothing is uploaded.
Documented formulas. Each page explains the math in plain English.
Cited sources. External benchmarks link to the publisher.
Updated dates. Pages show when they were last reviewed.
Accessible markup. Labeled inputs, keyboard support, and readable contrast.