Question 1

How much should a Saint Bernard weigh?

Accepted Answer

The ideal weight for a Saint Bernard is 119.0–180.8 lbs (54–82 kg). Giant breeds have slower metabolisms, so weight management is especially important.

Question 2

How many calories does a Saint Bernard need per day?

Accepted Answer

A typical adult Saint Bernard weighing about 150 lbs (68 kg) needs approximately 2652–3315 kcal per day, depending on activity level and neuter status.

Question 3

Is my Saint Bernard overweight?

Accepted Answer

59% of dogs are overweight. Check your Saint Bernard's Body Condition Score (BCS) — if you can't easily feel their ribs or they have no visible waist, they may be overweight. Take our free 2-minute BCS assessment.

Question 4

How big does a Saint Bernard get?

Accepted Answer

A full-grown Saint Bernard stands 65–70 cm (25.6–27.6 inches) tall and weighs 119.0–180.8 lbs (54–82 kg).

Question 5

What is the lifespan of a Saint Bernard?

Accepted Answer

The average lifespan of a Saint Bernard is 8–10 years. Giant breeds typically have shorter lifespans.

Question 6

When do Saint Bernards stop growing?

Accepted Answer

Most Saint Bernards reach their full adult weight between 18 and 24 months of age. Giant breeds are the slowest to mature and can keep growing until 18–24 months. Use the growth milestones section above to track if your Saint Bernard is growing at a healthy rate.

Question 7

How can I tell if my Saint Bernard is overweight?

Accepted Answer

Check three signs: (1) You can't feel your Saint Bernard's ribs easily under the fur. (2) From above, there's no visible waist behind the ribs. (3) From the side, the belly doesn't tuck up after the chest. If any of these apply, your Saint Bernard may be carrying extra weight. Use the Body Condition Score checker above for a quick assessment, or consult your vet.

Question 8

How much should a Saint Bernard puppy weigh at 3 months?

Accepted Answer

A 3-month-old Saint Bernard typically weighs 47.6–90.4 lbs (21.6–41.0 kg). Use our Puppy Weight Predictor to estimate your puppy's adult weight based on current age and weight.

Question 9

What is the best diet for a Saint Bernard to maintain healthy weight?

Accepted Answer

Adult Saint Bernards typically need 2652–3315 calories per day, depending on activity level. Feed a high-quality dog food appropriate for their life stage (puppy, adult, or senior) and size. Use our Calorie Calculator for a personalized daily food amount recommendation.

Question 10

How much exercise does a Saint Bernard need?

Accepted Answer

Saint Bernards are a giant-sized breed and typically need 45–60 minutes of exercise per day. This includes walks, play time, and mental stimulation. Adjust based on your dog's age and health — puppies need shorter, gentler sessions while healthy adults can handle more.

Weight Range	119.0–180.8 lbs (54–82 kg)
Height	65–70 cm (25.6–27.6 inches)
Full Growth	18–24 months
Daily Calories	~2652–3315 kcal (adult, neutered)

Saint Bernard Weight & Calorie Guide

Quick Facts

Ideal Weight Range

Saint Bernard Calorie Calculator