Dog Tools

Boston Terrier Age Calculator

Calculate your Boston Terrier’s age in human years and get personalised health, nutrition, and life stage information.

Boston Terrier Age Chart — Dog Years vs Human Years#

020406080Human Years02468101214Dog Age (years)

Boston Terrier Health Conditions#

Congenital Deafness

moderateModerate
Typical onset:00.5 years

Associated with white markings.

Prevention: BAER testing.

Symptoms: unresponsive to sounds

Brachycephalic Airway Issues

moderateCommon
Typical onset:14 years

Milder than Bulldogs/Frenchies but present.

Prevention: Maintain healthy weight.

Symptoms: snoring, heat sensitivity

Patellar Luxation

moderateCommon
Typical onset:15 years

Kneecap displacement common in small/medium breeds.

Prevention: Maintain healthy weight. Surgery for severe grades.

Symptoms: intermittent skipping, holding up hind leg

Hereditary Cataracts

moderateCommon
Typical onset:16 years

Early and late-onset cataracts common.

Prevention: Annual CAER exam. DNA test available.

Symptoms: cloudy eyes

Corneal Ulcers

moderateCommon
Typical onset:110 years

Prominent eyes vulnerable to injury.

Prevention: Protect from eye trauma.

Symptoms: squinting, tearing

Boston Terrier Growth Chart#

AgeWeight RangeNotes
2 months2.25 lbsEarly growth phase
4 months5.211.2 lbsAbout 40% of adult weight
6 months8.216.2 lbsAbout 60% of adult weight
9 months11.220.5 lbsNearing adult height
1 year12.823 lbsNear adult size
1.5 years14.224.5 lbsApproaching maturity
2 years1525 lbsFull adult weight

Healthy adult males 15-25 lbs. Maintain lean body condition.

Boston Terrier Life Stages#

puppy

0mo6mo

Active Boston Terrier puppies. Critical development and socialization phase.

socializationhousetrainingbite inhibitionbasic commands

adolescent

6mo1yr

Boston Terrier adolescents testing independence. Consistent training important.

obedience trainingimpulse controlleash training

young adult

1yr2.5yr

Boston Terrier reaches physical maturity. Energy remains high but focus improves.

dental careweight managementhealth screening

adult

2.5yr6yr

Prime adult years for Boston Terrier. Maintain health and activity level.

weight controldental cleaningshealth screening

mature adult

6yr8yr

Beginning to slow. May show graying.

biannual vet visitsjoint supplementsweight monitoring

senior

8yr11yr

Senior Boston Terrier may show age-related changes. Monitor breed-specific health concerns.

pain managementmobility supportcognitive enrichment

geriatric

11yrend of life

Focus on comfort and quality of life.

comfort carequality of life assessment

Dental Milestones#

0.75moBaby teeth begin erupting
3moTeething begins — baby teeth start falling out
4.5moAdult premolars and molars emerging
7moAll 42 adult teeth should be in place
2yrTartar buildup may begin
3yrDental disease risk increases significantly

Brachycephalic jaw causes some crowding.

Similar Breed Age Calculators

View all 50 breed age calculators →