Updated · Published by Radif Partners

Field Spaniel Weight & Growth Chart

Complete weight guide with growth charts for male and female Field Spaniels from puppy to adult.

The Field Spaniel belongs to the Sporting group and originates from England. Adults typically weigh between 35 and 50 pounds, standing 17 to 18 inches at the shoulder. Life expectancy runs from 12 to 13 years, and the figures on this page describe that range rather than a single average, because the spread is what matters when you are deciding. Running costs settle around $147 a month once the dog is past puppyhood, before insurance and before anything unexpected. These numbers come from published breed standards and, where a standard is silent, from longevity and veterinary studies; they describe the breed as a population and not the dog in front of you. Line, upbringing, early socialisation and simple chance move an individual well away from the typical profile, and two dogs of the same breed often differ more than two dogs of different breeds. Nothing here is a diagnosis: for a specific animal, a veterinary surgeon who has examined it will always know more than a table.

Male Adult Weight
35–50 lbs
Female Adult Weight
29–44 lbs

Field Spaniel Weight Overview

Adult Field Spaniels typically weigh between 35 and 50 pounds, with males generally being larger than females. Males average 35–50 lbs while females typically weigh 29–44 lbs.

Males 35-50 lbs, females 35-45 lbs. Medium-sized spaniel, larger than Cockers but smaller than Springers. Should appear balanced and moderate, never extreme..

Field Spaniel Growth Chart

When Does a Field Spaniel Stop Growing?

The Field Spaniel stops growing in height (target: 17–18 inches) around 12–15 months of age, but may continue adding weight toward 50 lbs for a few more months. Males 35-50 lbs, females 35-45 lbs. Medium-sized spaniel, larger than Cockers but smaller than Springers. Should appear balanced and moderate, never extreme..

Their medium coat may also undergo changes during this period, reaching its adult texture by maturity.

Field Spaniel Male vs Female Size Differences

Male and female Field Spaniels differ noticeably in size, a pattern common in medium breeds. Males typically weigh 35–50 lbs, while females weigh 29–44 lbs. Both sexes stand 17–18 inches tall at the shoulder, though males tend to fall at the upper end of this range.

These size differences can influence practical ownership decisions. Larger males require more food, larger crate sizes, and stronger leash handling. Female Field Spaniels at the lower weight range may be easier to manage physically for smaller handlers or families with children. Both sexes share the same temperament and health profile, so size preference should be a practical decision rather than a temperament-based one.

Is My Field Spaniel Overweight?

Assessing your Field Spaniel's body condition (healthy range: 35–50 lbs):

  • Rib check: Run your hands along the ribcage, you should feel individual ribs under a slight fat layer
  • Overhead view: A defined waist should be visible between ribs and hips
  • Side profile: The abdomen should tuck upward behind the last rib

Overweight Field Spaniels face higher risks of Hip Dysplasia, joint problems, and shortened lifespan. Even for a medium-sized breed, excess weight significantly impacts joint health and overall wellbeing. Work with your vet to adjust feeding and exercise if needed.

Field Spaniel Weight Management Tips

Maintaining your Field Spaniel at a healthy weight between 35 and 50 lbs is one of the most impactful things you can do for their long-term health. Studies consistently show that lean dogs live an average of 1.8–2.5 years longer than overweight dogs of the same breed.

Portion control: Use a measuring cup for every meal rather than estimating. Feed the amount recommended for your Field Spaniel's ideal weight, not their current weight if they are overweight. Divide daily food into two meals for adults and three meals for puppies under six months.

Treat management: Treats should not exceed 10% of daily caloric intake. Use small, low-calorie training treats and consider using pieces of your dog's regular kibble as rewards during training sessions. Avoid table scraps entirely, as they add unpredictable calories and can introduce foods that are toxic to dogs.

Exercise alignment: With an exercise needs rating of 3/5, the Field Spaniel requires moderate daily exercise. Balance food intake with activity level, adjusting portions during periods of reduced activity such as recovery from illness or injury.

Regular weigh-ins: Weigh your Field Spaniel monthly and track the trend. Gradual weight gain of even one to two pounds per month can lead to significant obesity over time. Your veterinarian can establish your dog's ideal weight during wellness visits and recommend caloric adjustments as needed.

Feeding Recommendation

Plan on 0.5–1.0 cups of premium dry food daily for your adult Field Spaniel, divided into morning and evening meals. Given this sporting breed's predisposition to Hip Dysplasia, discuss dietary approaches that may help manage this risk with your vet. Males 35-50 lbs, females 35-45 lbs. Medium-sized spaniel, larger than Cockers but smaller than Springers. Should appear balanced and moderate, never extreme..

Field Spaniel Weight by Age Table

The following table shows expected weight ranges for male and female Field Spaniels at key developmental milestones. Individual dogs may fall slightly outside these ranges depending on genetics, nutrition, and activity level. Consult your veterinarian if your Field Spaniel's weight deviates significantly from these benchmarks.

AgeMale (lbs)Female (lbs)
3 months 11.3–13.7 9.6–11.6
6 months 25.0–30.0 21.2–25.6
9 months 36.3–43.7 30.8–37.2
12 months 45.4–54.6 38.5–46.5

Health Risks of Incorrect Weight in Field Spaniels

Both underweight and overweight conditions pose serious health risks for the Field Spaniel. Understanding these risks reinforces the importance of maintaining your dog within the 35–50 lb target range.

Overweight risks: Excess weight places additional strain on joints, increasing the risk and severity of conditions like Hip Dysplasia. Overweight Field Spaniels also face higher rates of diabetes, heart disease, respiratory compromise, heat intolerance, and reduced lifespan. Even moderate excess weight, just 10–15% above ideal, shortens life expectancy and reduces quality of life.

Underweight risks: A Field Spaniel consistently below 35 lbs may be experiencing inadequate nutrition, parasitic infection, dental problems that prevent eating, or underlying illness. Underweight dogs have weakened immune systems, poor coat quality, reduced energy, and slower healing. If your Field Spaniel appears thin despite normal feeding, veterinary examination is essential to rule out medical causes.

Frequently Asked Questions

Males: 35–50 lbs. Females: 29–44 lbs. Males 35-50 lbs, females 35-45 lbs. Medium-sized spaniel, larger than Cockers but smaller than Springers. Should appear balanced and moderate, never extreme.. Consult your vet for a personalized assessment. The Field Spaniel belongs to the Sporting group and originates from England.
The Field Spaniel reaches full adult size (17–18 inches, 35–50 lbs) by approximately 12–15 months. Moderate exercise needs of 45-60 minutes daily. Enjoys long walks, exploring in fields, and swimming. Not as demanding as Springers but needs regular activity.. Growth rate is influenced by genetics, diet, and overall care.
Three quick checks for your Field Spaniel: (1) Feel the ribs–they should be easily palpable under a thin fat layer. (2) View from above–there should be a visible waist behind the ribs. (3) Side profile–the abdomen should tuck up. Target weight: 35–50 lbs. Their coat type allows for relatively easy visual body condition assessment. Consult your vet for a body condition score.
Feeding amounts depend on age, current weight, and the Field Spaniel's expected adult size of 35–50 lbs. Puppies under 6 months need 3–4 meals daily; older puppies eat twice daily. A high-quality puppy food formulated for medium breeds provides the right nutrient balance. A relatively healthy breed overall, benefiting from dedicated breeder efforts to avoid the structural exaggerations that plagued the breed in the past..
If your Field Spaniel puppy isn't gaining weight as expected (target adult weight: 35–50 lbs), consult your vet. Common causes include intestinal parasites, insufficient calorie intake, or malabsorption. The breed's predisposition to Hip Dysplasia could also be a factor worth investigating. A fecal test and blood work are typically the first diagnostic steps.