Dog Hub – Calculators & Vet-Inspired Guides
Welcome to the Dog Hub on PetCalculators. Use these dog tools and vet-inspired guides to sanity-check your dog’s age, weight, calories and pregnancy timeline – always as a complement to, not a replacement for, your vet.
Dog calculators & tools
Start here to get quick, realistic estimates.Dog Age Calculator
See your dog’s “real age” using modern vet methods.
- Uses size and age, not just “×7” math
- Helps you think about life stage, not just years
Dog Weight Calculator
Check if your dog’s weight is near a typical range.
- Combines breed info and body condition ideas
- Use with our breed weight chart & BCS guide
Dog Calorie Calculator
Estimate daily kcal needs for your dog.
- Based on RER & MER formulas
- Show ranges for active, neutered & weight loss
Dog Pregnancy Calculator
Estimate due dates & key pregnancy weeks.
- Uses typical 58–63 day gestation range
- Pairs with our week-by-week symptom guide
Dog guides connected to these tools
Dog age
How to Know Your Dog’s Real Age (Modern Vet Method Explained)
Why “1 dog year = 7 human years” doesn’t work, and how vets actually think about dog aging using size, breed and life stage curves.
Read this dog age guide →Weight by breed
Dog Weight Chart by Breed (Updated Guide 2025)
A breed-by-breed look at typical weight ranges, and how to use charts together with body condition instead of chasing a single “perfect” number.
View the breed weight chart →Calories
How Many Calories Does a Dog Need Per Day?
Step-by-step examples that match the Dog Calorie Calculator, including weight-loss vs. maintenance targets and how to read food labels.
Read the calories guide →Body condition
Signs Your Dog Is Underweight or Overweight
Practical signs to watch for at home – from ribs and waistline to energy levels and coat – plus when weight changes need a vet visit.
Read the weight signs guide →Pregnancy
Dog Pregnancy Week-by-Week Timeline (With Symptoms)
A simple week-by-week overview of typical changes, with clear symptom lists and when to call your vet urgently during pregnancy.
Read the pregnancy timeline →How to use the Dog Hub
1. Start with a calculator
Use the Dog Age, Weight, Calorie or Pregnancy Calculator first to get a rough idea for your dog’s situation.
2. Read the matching guide
Each calculator has at least one in-depth article linked above so you can understand the “why” behind the numbers.
3. Use numbers as a conversation starter
Bring your results and notes to your vet. These tools are designed to support better conversations, not replace them.
Keep this Dog Hub handy
Bookmark this page on PetCalculators to quickly find all dog calculators and guides in one place.