Dog Weight Calculator & Puppy Growth Calculator

Use the dog weight calculator and puppy growth calculator to estimate adult size, compare puppy growth charts and dog size charts, and check healthy weight ranges by breed.

Use the calculator with charts and healthy weight guides

Run the puppy growth calculator

Start with age and current weight, then refine the estimate with breed, sex, and parent size when known.

Start estimate

Open breed weight charts

See breed-specific adult weight ranges, growth patterns, weight by age notes, and size expectations for popular dog breeds.

Open breed charts

Compare dog size charts

Compare your puppy with toy, small, medium, large, and giant dog size ranges by age in kg or lb.

Open size charts

Read puppy growth guides

Use the puppy weight chart by age, body condition guide, and growth timing pages to interpret each estimate.

Open guide hub

Puppy Weight Calculator

Estimate puppy weight, adult size, and growth range in one place

Enter the basics first, then add breed and parent details to get a more useful adult weight range.

After the estimate, compare it with a breed weight chart, the matching dog size chart, or the puppy weight chart by age. For body-shape context, read the dog body condition score guide.

Planning tool only - not veterinary advice.

Puppy Weight Calculator

Get an estimated adult weight range, confidence level, and a result you can save or share.

Enter age greater than 0.
Enter weight greater than 0.

Breed photos

Dog breed photo placeholder for the puppy weight calculator
Dog breed photo placeholder for the puppy weight calculator
Dog breed photo placeholder for the puppy weight calculator
Dog breed photo placeholder for the puppy weight calculator
Dog breed photo placeholder for the puppy weight calculator

How to use the estimate

Puppy weight calculator step 1 image showing a puppy on a scale

Start with basics

Step 1

Enter age and current weight. Choose weeks or months and lb or kg, then use the most accurate numbers you have.

Puppy weight calculator step 2 image showing breed and size details

Add more detail

Step 2

Refine with breed and parent size. Add breed, sex, and parent weights when known to narrow the likely adult range.

Puppy growth tracking and next-step guide image

Check again later

Step 3

Review and track progress. Save the result and rerun the calculator as your puppy grows to compare progress over time.

Read the calculator result with better context

Use these guides after an estimate to connect age, breed size, body condition, and healthy follow-up.

All guides

Puppy weight chart by age

Compare weekly and monthly checkpoints before you judge a single calculator result.

Open age guide

Dog body condition score guide

Check ribs, waist, and tuck so the weight number has real-world shape context.

Open condition guide

When dogs stop growing

See how size class changes the point when height, muscle, and fill-out slow down.

Open timing guide

Large breed puppy growth

Use slower-growth guidance for large and giant puppies before changing food or exercise routines.

Open large guide

When owners usually recheck weight

Common times to run the puppy weight calculator again during growth.

First puppy weigh-in reminder image

First weigh-in

Start with your puppy's first reliable home or vet weight to set a baseline.

Puppy growth spurt check reminder image

Growth spurt check

Recheck after a sudden jump in size or appetite to keep expectations realistic.

Puppy size chart comparison reminder image

Compare with chart

Use the result beside a puppy growth chart or breed guide for more context.

Saved puppy weight results reminder image

Save results

Keep each estimate so you can compare changes when you update the inputs.

Common questions about the dog weight calculator and puppy growth charts

These are the questions owners usually ask before they trust a result, compare a breed page, or switch from a calculator to a size chart.

Browse full FAQ

A puppy weight calculator is a planning tool, not an exact adult weight guarantee. It works best when you use a recent weigh-in, choose the right breed or size context, and compare the result with a breed weight chart or dog size chart.

Use the calculator first when you know age and current weight. Then open the matching breed weight chart or size chart to see the broader growth range, adult weight range, and common pace for that breed size.

Yes. Start without a breed if needed, then compare the result with toy, small, medium, large, and giant dog size charts. Mixed-breed puppies often need repeated weigh-ins and body-condition checks more than one exact label.

During active growth, most owners recheck weekly to biweekly. Repeating the estimate over time is more useful than one weigh-in because steady progress tells you more than a single jump or stall.

Ready to check again?

Get your puppy's next weight estimate

Start with age and current weight, then refine the result with breed and size references. Use it as a planning guide, and ask your vet about health or growth concerns.