All credit to this goes to user Gideon Altius on the (now dead) eso-rp enjin forum. Since the site is now gone, I saved the .html of a cache of the page, and have ported what I could over here.
Welcome to our very own RP stats for ESO! On this page you will find a range of 'realistic' heights/weights/age(s) for each playable species while corresponding with the in-game height/weight/age slider(s)! Please head up to the Table of Contents to find the section you're looking for!
The method used to obtain these heights was quite easy but required me to use a measurement on myself as reference to build these in-game heights off of. First I had obtained a screenshot from a fellow TESO-RP member which had every species at the same slider position ('8') standing in the same position beside one another. From there I decided we'll make ('8') for Imperials to be 6'0" (There are 16 slider positions, so number 8 represents the 'average'). From there I measured the Imperial ('1') and compared it to Imperial ('16') and saw ('1') came to ('16')s mid-nose. I measured my mid-nose to the top of my head and got 6.5 inches, so that means for each race ***Note: I'm not sure if each race has the same increase with each slider change as one another. Note-End*** there is most likely 6.5 inches between the shortest and tallest variant(s). So now we divide 6.5 inches by 16 and get .40625 of an inch (Lets round it to .4 of an inch for easier calculations). So with each slider position change there is nearly half an inch of height change. I received the 'average' of the other species by seeing where they met up with the Imperial 'average' and marked it down. I then used the marked down area(s) and measured said area(s) on my head to get an idea of the height difference giving us the heights on this thread.
Accurate Height Range
Imperial:
Male Low: 5'4" Male AVG: 6'0" Male High: 6'5"
Female Low: 5'0" Female AVG: 5'8" Female High: 6'1"
Breton:
Male Low: 5'4" Male AVG: 6'0" Male High: 6'5"
Female Low: 5'0" Female AVG: 5'8" Female High: 6'1"
Redguard:
Male Low: 5'6" Male AVG: 6'1" Male High: 6'4"
Female Low: 5'3" Female AVG: 5'9" Female High: 6'3"
Nord:
Male Low: 5'11" Male AVG: 6'4" Male High: 6'7"
Female Low: 5'10" Female AVG: 6'2" Female High: 6'5"
Altmer:
Male Low: 6'2" Male AVG: 6'7" Male High: 7'2"
Female Low: 6'0" Female AVG: 6'5" Female High: 6'11"
Dunmer:
Male Low: 5'3" Male AVG: 5'11" Male High: 6'4"
Female Low: 5'0" Female AVG: 5'6" Female High: 6'0"
Bosmer:
Male Low: 4'10" Male AVG: 5''4" Male High: 5'9"
Female Low: 4'9" Female AVG: 5'3" Female High: 5'7"
Orc:
Male Low: 5'11" Male AVG: 6'4" Male High: 6'7"
Female Low: 5'10" Female AVG: 6'2" Female High: 6'5"
Argonian:
Male Low: 5'9" Male AVG: 6'1" Male High: 6'4"
Female Low: 5'8" Female AVG: 5'10" Female High: 6'2"
For Khajiit it depends heavily on the furstock, but their maximum and minimum height nonetheless is as follows:
Male Low: 5'6" Male AVG: 6'0" Male High: 6'10"
Female Low: 5'3" Female AVG: 5'7" Female High: 6'8"
Accurate Weight Ranges
IV:) Now for the ranges of weight I took their appearance, build, and other factors into creating this range of possible weight(s). Also keep in mind your character can be under or over these numbers, as these are just'average' ranges for each given race!
Imperial:
Male: (S): 105 - 150 (M): 151 - 185 (L): 186 - 235 (Muscular:) 180 - 250
Female: (S): 85 - 115 (M): 116 - 140 (L): 141 - 175 (Muscular:) 115 - 150
Breton:
Male: (S): 105 - 150 (M): 151 - 185 (L): 186 - 235 (Muscular:) 180 - 250
Female: (S): 85 - 115 (M): 116 - 140 (L): 141 - 175 (Muscular:) 115 - 150
Redguard
Male: (S): 115 - 165 (M): 166 - 195 (L): 196 - 253 (Muscular:) 190 - 260
Female: (S): 95 - 115 (M): 116 - 150 (L): 151 - 180 (Muscular:) 125 - 160
Nord
Male: (S): 135 - 175 (M): 176 - 205 (L): 206 - 270 (Muscular:) 215 - 280
Female: (S): 120 - 155 (M): 156 - 180 (L): 181 - 205 (Muscular:) 145 - 190
Altmer
Male: (S): 120 - 150 (M): 151 - 174 (L): 175 - 230 (Muscular:) 200 - 280
Female: (S): 110 - 140 (M): 141 - 161 (L): 162 - 189 (Muscular:) 150 - 190
Dunmer
Male: (S): 105 - 150 (M): 151 - 185 (L): 186 - 235 (Muscular:) 180 - 250
Female: (S): 85 - 115 (M): 116 - 140 (L): 141 - 175 (Muscular:) 115 - 150
Bosmer
Male: (S): 100 - 125 (M): 126 - 155 (L): 156 - 185 (Muscular): 160 - 190
Female: (S): 85 - 110 (M): 111 - 124 (L): 125 - 140 (Muscular): 130 - 155
Orc
Male: (S): 150 - 175 (M): 176 - 215 (L): 216 - 305 (Muscular:) 235 - 325
Female: (S): 135 - 155 (M): 156 - 180 (L): 181 - 205 (Muscular:) 145 - 215
Argonian
Male: (S): 135 - 165 (M): 166 - 181 (L): 182 - 215 (Muscular): 185 - 225
Female: (S): 115 - 135 (M): 136 - 155 (L): 156 - 174 (Muscular): 130 - 170
Khajiit
Male: (S): 135 - 165 (M): 166 - 181 (L): 182 - 215 (Muscular): 185 - 225
Female: (S): 115 - 135 (M): 136 - 155 (L): 156 - 174 (Muscular): 130 - 170
Accurate Age Ranges
IV: Age for each race is highly dependent on if the race is Man or Mer or Beast. On top of that one could expand their natural life expectancy with magicka, alchemy, diseases, or other means. This chart will reflect the best guess of each race's natural life without other altercations. On a side note we will assume age is sexually unbiased!
Imperials: 90 years
Bretons: 100 years
Redguards: 90 years
Nords: 90 years
Argonians: 75 years
Khajiit: 90 years
Altmer: 400 years
Bosmer: 200 years
Dunmer: 300 years
Orc: 60 years