35 to 45 in (89 to 114 cm)
Length
28 to 30 in (71 to 76 cm)
Height (Male)
26 to 28 in (66 to 71 cm)
Height (Female)
140 to 180 lbs (64 to 82 kg)
Weight (Male)
120 to 140 lbs (54 to 64 kg)
Weight (Female)

About

#Mammals

The Saint Bernard is a giant, gentle breed famous for its strength, rescue history, and affectionate nature. Originating in the Swiss Alps, the breed was developed by monks at the Hospice of the Great St. Bernard Pass in the 17th century to aid in rescuing travelers lost in snow and avalanches. Known for their ability to navigate treacherous terrain and locate stranded people, Saint Bernards became legendary Alpine heroes. The Saint Bernard’s scientific name is Canis lupus familiaris, and it belongs to the family Canidae.

Saint Bernards are massive and powerful, typically standing 26–30 inches (66–76 cm) tall and weighing 120–180 pounds (54–82 kg), with some males exceeding 200 pounds (91 kg). They have a large, broad head, expressive dark eyes, and a gentle, dignified expression. Their thick double coat can be short or long, usually in white with red, brown, or brindle markings. Their strong build, deep chest, and muscular legs give them both stamina and stability in harsh conditions.

Despite their imposing size, Saint Bernards are calm, friendly, and affectionate. They are excellent with children and make devoted family companions, though their size requires supervision around small kids. They are intelligent and eager to please, but their laid-back nature means training should be patient and consistent.

Saint Bernards need moderate daily exercise but are not overly active indoors, making them surprisingly adaptable for their size. They do best in cooler climates due to their heavy coat. Regular grooming is necessary, especially for the long-haired variety, to prevent matting. With their loving temperament, legendary history, and majestic presence, Saint Bernards remain one of the most iconic giant breeds in the world.

Threatened:
Extinct
Critically Endangered
Endangered
Vulnerable
Near Threatened
Least Concern

Physical Characteristics

Saint Bernards are giant working dogs known for their strength, gentle temperament, and iconic history as alpine rescue dogs in the Swiss Alps.

Coat:
They have two coat types—short-haired (smooth) and long-haired (rough)—both dense and weather-resistant. Coat colors are typically white with red, mahogany, brindle, or orange markings, often with a black mask and white blaze on the face.

Face:
Saint Bernards have a massive head with a broad skull, short, deep muzzle, and pronounced stop. Their expressive, medium-sized dark brown eyes convey warmth and intelligence. Ears are medium-sized, triangular with rounded tips, and set high, hanging close to the cheeks. Wrinkling appears naturally on the forehead when attentive.

Body:
They possess a powerful, muscular frame with a broad chest, strong shoulders, and a level back. Their deep chest provides exceptional lung capacity, important for endurance in harsh mountain conditions.

Tail:
Long, heavy, and carried low when relaxed, the tail is well-covered in thick fur and slightly curves upward when alert or moving.

Size:

  • Length (Body): Approximately 35 to 45 in (89 to 114 cm) from chest to rump.

  • Shoulder Height:

    • Males: 28 to 30 in (71 to 76 cm)

    • Females: 26 to 28 in (66 to 71 cm)

Weight:

  • Adult Female: 120 to 140 lbs (54 to 64 kg)

  • Adult Male: 140 to 180 lbs (64 to 82 kg)

Saint Bernards’ physical characteristics combine massive strength, weather-resistant coats, and a kind, intelligent expression, making them well-suited for rescue, companionship, and family life, despite their imposing size.

Reproduction

The reproductive cycle of Saint Bernards follows the general domestic dog pattern, but their giant size and slower maturation rate mean breeding should be approached with extra care.

1. Mating and Courtship:
Saint Bernards typically reach sexual maturity between 8 and 12 months, but responsible breeders wait until females are at least 24 months old and males are fully matured to reduce health risks. Courtship usually involves calm social interaction, as these dogs tend to be gentle-natured.

2. Estrus Cycle:
Females usually come into heat twice a year, with each cycle lasting about 2–3 weeks. The optimal breeding window is typically between days 9–14, though timing may vary by individual.

3. Gestation:
The gestation period averages 63 days (about 9 weeks). Because of their large size, pregnant Saint Bernards require extra space, a nutrient-rich large-breed formula, and close monitoring to prevent joint strain and overheating.

4. Birth of Puppies:
Typical litter sizes range from 6 to 10 puppies, though litters as large as 12 or more are not uncommon. Due to the breed’s size, whelping generally proceeds naturally, but veterinary assistance should be on standby for complications.

5. Care and Nurturing:
For the first 3–4 weeks, the mother provides constant care, warmth, and milk. Puppies open their eyes around 10–14 daysand begin walking shortly after. Because large-breed puppies grow quickly, early nutrition is critical to healthy bone and joint development.

6. Weaning and Socialization:
Weaning begins at about 4 weeks, transitioning gradually to a high-quality large-breed puppy diet. Socialization between 4–12 weeks is crucial for Saint Bernards to develop confidence and proper behavior, as their adult size can be intimidating if poorly socialized.

7. Independence:
By 8–10 weeks, puppies are generally ready for rehoming, though some breeders keep them until 12 weeks to ensure stronger physical development and better early training.

Because Saint Bernards are prone to hip and elbow dysplasia, bloat (gastric torsion), and certain heart conditions, reputable breeders perform thorough health screenings before mating to produce healthy, well-balanced litters.

Lifespan

Lifespan in the Home Environment:
Saint Bernards typically live 8 to 10 years, with some reaching 11 or more with excellent care. As with many giant breeds, their shorter lifespan is linked to rapid growth and the physical demands of supporting such a large body.

Lifespan in Active or Working Roles:
Historically used as alpine rescue dogs, Saint Bernards in modern working or therapy roles benefit from regular exercise and mental stimulation. However, physically demanding work can increase the risk of joint strain and heart stress, potentially shortening lifespan if not managed carefully.

Common Health Factors Affecting Lifespan:

  • Hip and Elbow Dysplasia: Common in large breeds, can lead to arthritis and mobility issues.

  • Bloat (Gastric Dilatation-Volvulus): A life-threatening condition requiring immediate veterinary care.

  • Heart Conditions: Including dilated cardiomyopathy.

  • Osteosarcoma: Bone cancer, more common in large and giant breeds.

  • Eye Issues: Such as entropion, ectropion, and cataracts.

  • Obesity: Can exacerbate joint and heart problems.

Ways to Maximize Lifespan:

  • Feed a high-quality, large-breed-appropriate diet to support joint and heart health.

  • Maintain a healthy weight to reduce strain on bones and organs.

  • Provide moderate daily exercise without overexertion, especially in hot weather.

  • Schedule regular veterinary checkups, with orthopedic and cardiac screenings.

  • Monitor for early signs of bloat and consider preventive gastropexy surgery.

With attentive care, Saint Bernards can remain gentle, loyal, and affectionate companions throughout their lives, offering a unique blend of calmness and devotion in a giant-sized package.

Eating Habits

Diet:
Saint Bernards require a nutrient-rich, large-breed-specific diet that supports their massive size, bone health, and joint integrity. High-quality commercial kibble or fresh-prepared meals should feature lean animal protein (chicken, beef, lamb, or fish), healthy fats for skin and coat health, and controlled carbohydrates for steady energy without excessive weight gain. Added glucosamine, chondroitin, and omega-3 fatty acids help support joint health, which is critical for giant breeds.

Feeding Schedule:

  • Puppies (under 6 months): 3–4 small meals daily to support steady growth and prevent rapid weight gain that can stress developing joints.

  • Adults: 2 meals daily to maintain energy and reduce the risk of bloat.

  • Seniors: 2 smaller meals daily, with calorie adjustments to prevent obesity and support aging joints.

Eating Behavior:
Saint Bernards tend to be steady, moderate eaters rather than fast gulpers, but their large size means portion control is crucial. Overfeeding can lead to obesity, which worsens joint and heart problems.

Special Considerations:

  • Bloat Prevention: Divide daily food into two or more meals, avoid vigorous activity for at least one hour before and after eating, and consider elevated feeding bowls.

  • Weight Management: Maintain lean body condition to extend mobility and reduce orthopedic issues.

  • Growth Rate Control: For puppies, avoid overly calorie-dense diets to prevent excessively rapid growth, which can cause skeletal deformities.

  • Heat Sensitivity: Feed during cooler parts of the day in warm climates, as the breed can overheat easily.

Treats and Extras:
Healthy treat options include apple slices (without seeds), carrot sticks, blueberries, and small amounts of cooked lean meat. Avoid feeding fatty table scraps, high-sodium snacks, chocolate, grapes, onions, or garlic, all of which can be harmful.

A measured, joint-supportive, and slow-growth-focused feeding plan helps Saint Bernards maintain healthy weight, strong mobility, and the stamina needed for their gentle yet powerful lifestyle.

Uniqueness

The Saint Bernard is a legendary giant breed celebrated for its heroic history, gentle nature, and impressive strength:

Historic Alpine Rescuer:
Originating in the Swiss Alps, Saint Bernards were bred by monks at the Great St. Bernard Hospice to locate and rescue travelers trapped in snow and avalanches. Their exceptional scenting ability and endurance made them life-saving companions in harsh mountain conditions.

Massive but Gentle:
Despite their imposing size, Saint Bernards are famously gentle, patient, and affectionate, making them excellent family dogs and therapy animals.

Two Coat Varieties:
They come in both short-haired (smooth) and long-haired (rough) varieties, each with a dense, weather-resistant coat designed to protect against alpine cold.

Exceptional Scenting Skills:
Saint Bernards have an extraordinary sense of smell and directional ability, which historically allowed them to locate people buried under deep snow.

Cultural Icon:
The breed’s image as a noble rescuer has been immortalized in art, films, and folklore—often depicted carrying a small barrel of brandy (a myth, but a charming one).

Adaptable Gentle Giant:
While bred for mountain work, they adapt well to calm family life, provided they have space, moderate exercise, and companionship.

Heroic Legacy:
Famous rescue dogs like Barry, credited with saving over 40 lives in the early 1800s, cemented the Saint Bernard’s reputation as a true working hero.

The Saint Bernard’s combination of legendary rescue work, imposing strength, and warm-hearted companionshipmakes it one of the most admired and respected dog breeds in history.

FAQ’s

1. What is the closest species to the Saint Bernard?

The Saint Bernard’s closest relatives are other large mountain working breeds, particularly the Bernese Mountain Dogand the Greater Swiss Mountain Dog.

Genetic evidence also shows strong ties to the Mastiff family and the now-extinct Alpine Mastiff, which contributed to their size, power, and rescue abilities.

2. How does the Saint Bernard compare to other breeds?

Saint Bernards are gentler and less aggressive than many other giant working breeds, with a calmer, more affectionate temperament. Compared to the Bernese Mountain Dog, they are larger and more powerful, but less agile.

While Mastiff-type breeds often serve as guardians, Saint Bernards were bred for rescue work, making them more focused on aiding people than guarding property.

3. What national or state parks provide the best chances to see a Saint Bernard?

Saint Bernards are a domesticated breed and not found in the wild, but they are often spotted in pet-friendly parks and mountain recreation areas with cooler climates, such as:

  • Rocky Mountain National Park (Colorado) – Pet-friendly roads and designated areas with alpine scenery.

  • Mount Rainier National Park (Washington) – Surrounding dog-friendly trails in cooler mountain environments.

  • Franconia Notch State Park (New Hampshire) – Cooler-weather hiking areas where large mountain breeds often accompany their owners.

Because of their size, cold tolerance, and love for mountain environments, Saint Bernards are most often seen in parks with cooler climates, gentle trails, and open spaces where they can move comfortably without overheating.