I think we need to define what a human year is and what a dog year is.
I see it as a human year =365 days
I see it as a dog year is 365/7 =approx 52 days
A dog that is 7 human years would be 2555 days old
A dog that is 49 human years=49(365) =17885 human days old
Now the other way says
If a dog is 7 years old it is 49 human years old.
I disagree. It may be equivelant in ratio to the age of a 49 year old person but it is certainly not 17,885 days old. I know what the web sites say but I think the wording is wrong. A human year is a human year and if I was 49 human years old I would be 17,885 days old (not counting leap years for you detail oriented folks) And I would be 49(7)=343 dog years old
I have been to the websites and just because its on the web in a thousand places doesnt make it right, look at all the false or conflicting information just on this forum. I also just want to find the proper wording, if this is offending anyone please put me on ignore because on a serious topic I will make you insane.