Dog Tools & Calculators

Find dog calculators for age, feeding, calories, weight, hydration, pregnancy dates, puppy growth, heat cycles, and life expectancy.

Dog ToolsAge

Dog Age Calculator

Estimate dog age in human years.

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Dog ToolsFeeding

Dog Food Calculator

Plan feeding amounts by weight and activity.

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Dog ToolsFeedingHealth

Dog Calorie Calculator

Estimate daily calorie needs for dogs.

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Dog ToolsWeightHealth

Dog Weight Calculator

Track and estimate healthy dog weight ranges.

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Dog ToolsGrowthWeight

Puppy Growth Calculator

Estimate puppy growth and adult size context.

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Dog ToolsSize

Dog Crate Size Calculator

Estimate a comfortable dog crate or travel kennel size.

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Dog ToolsSize

Dog Harness Size Calculator

Estimate dog harness size from chest and neck measurements.

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Everyday care

Simple tools for everyday dog care

WagTool helps pet owners answer common care questions with simple, practical calculators. Dog tools help you estimate everyday numbers, understand how results are calculated, and read practical notes before using the estimate.

These tools provide educational estimates only. For diet, pregnancy, growth, weight, hydration, or health concerns, a veterinarian should always be the trusted source for decisions about an individual dog.