Same as any other dogs. About 10-15 years
The average lifespan of a Yorkshire Terrier is around 12 to 15 years.
The average lifespan of a Norwich Terrier is between 12 and 14 years.
The life span of a Bedlington Terrier is 12 - 14 years.
i would say 12- 17 or more years if healthy
The average lifespan of a Pit Bull Terrier is between 12 and 14 years, but they may live for even longer if well cared for.
A Boxer-Patterdale Terrier mix typically has a lifespan of around 10 to 15 years. Factors such as genetics, diet, exercise, and healthcare can influence their longevity. Regular veterinary check-ups and a healthy lifestyle can help maximize their lifespan.
Well if they are healthy around about 16-21 years if your lucky. But usually if they are normal and not as healthy about 16-18 years. But they are great dogs! I would recommend them as a family pet! :-)
About 12-15 years on general terms which means feeding them too much : )
The average lifespan for a Boston Terrier is between 13 and 15 years if looked after well.
a Yorkshire terrier has a lifespan of 12-15 years.. Smart and self-assured, the Yorkshire Terrier is a combination of endearingly small size and adventurous terrier spirit. http://dogtime.com/dog-breeds/Yorkshire-terrier/personality
source: http://www.dogandcollar.com/breed-profiles/scottish-terrier.htm
The welsh lives for 9 to 14 years, the average is 11 to 12. Some have lived as long as 17, but this is unusual.