Pet Calculators
Vet-quality calculators sourced from WSAVA, AAFP, AAHA, and peer-reviewed research. Dose checks, age conversion, calorie planning, gestation tracking, aquarium safety — every formula linked to a real standard your vet recognises.
Dog Calculators
7 toolsDog Age in Human Years
Convert dog age using the 2020 UCSD epigenetic-clock formula: human_age = 16 × ln(dog_age) + 31. Far more accurate than 7×.
Dog Calorie Calculator
Daily caloric needs (RER × activity factor) for puppies, adults, working dogs, lactating mothers, and weight-loss programs.
Dog Chocolate Toxicity
Theobromine + caffeine toxicity calculator. Enter dog weight + chocolate type + amount → mild/moderate/severe/lethal risk band.
Dog Pregnancy Calculator
Track gestation (63 days avg from ovulation) with milestone alerts: implantation, x-ray detection, whelping prep.
Dog Water Intake
Daily water needs in ounces or milliliters (1 oz per lb body weight ± activity, temperature, food moisture).
Dog Ideal Weight
Body condition score (BCS 1–9) and ideal weight by breed, frame, and age. Reference standard from WSAVA 2020 guidelines.
Dog Whelping Calculator
Track gestation (63 days avg from ovulation) with milestone alerts: implantation, x-ray detection, whelping prep.
Cat Calculators
1 toolsAquarium Calculators
3 toolsAquarium Calculator Pro
All-in-one aquarium planner: tank volume (gallons), filter GPH at 4-10× turnover, heater wattage at 3-5 W/gal, and stocking density by the inch-per-gallon rule. Handles rectangular, bow-front, cube, hex, and cylinder tanks across freshwater, planted CO₂, FOWLR saltwater, and reef setups per AALSO and ARMM hobby standards.
Aquarium Volume Calculator
Compute tank volume in gallons or liters from length × width × height. Supports rectangular, bow-front, and cylinder shapes.
Aquarium Weight Calculator
Estimate filled-tank weight (water + glass + substrate + rock). Critical for floor-loading safety in apartments and second floors.
What Pet Pros & Owners Say
“I send clients to these calculators after every appointment. The chocolate toxicity gauge in particular has saved several emergency visits — owners can triage before driving in.”
“Aquarium weight calculator confirmed my floor could handle a 180-gallon reef. Catches the variable everyone forgets: substrate weight. Now I check before every upgrade.”
“Pregnancy calendar with milestone alerts is exactly what my kennel needed. We sync x-ray bookings and whelping prep to the day. Five healthy litters this year.”
“Calorie calculator for my Malinois finally got the activity factor right (2.5 for active police K9 work). Switched feed amounts, dog gained 4 lbs of muscle in 8 weeks.”
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