You guys made it easy for me to follow, thanks!!! ....I have a quick question to piggy back on what star28c orginally asked ?.....is the chart accurate at any age? Or not until the puppy is 8 weeks or more? I ask because we are getting a new girl that is only 5 weeks old today (of course I will not be getting her for several more weeks) but was wondering if I had her weight now would that be accurate?? or do I have to wait until she is 8 weeks old, get that weight from the breeder to figure out the "guesstimate" adult weight?