http://wiki.secondlife.com/wiki/User:Ethos_Erlanger has a lot of known and tested facts about how high a avatar is! all tested and proven accelerate by the top people of Linden Lab! I have been arguing for a while to a 3rd party viewer that a newly made test avatar that can be found in advancet > character >character test > test female is only 5 feet 1, "not 6 foot 6" at 2.0 meters! but they will not agree with me so i have now found 100% proof after going insane from it! and doing some more searching! tada a ruler! =) and the the hight of a real life door! =) and what that link i posted att he top said add it all up look at my picks down below.. have fun! Fact 1: a average real life Female is 5.0-5.9 feet, "not 6.6 feet" Fact 2: a real life door its 7 feet tall! "not 10 feet tall" evryone on youtube even says it's 7ft! http://www.youtube.com/watch?v=X2FWMVXhqNQ Fact 3: a real ruler/yard stick seems to match the secondlife grid meter perfectly by 100% without missing 1 single # and the 7 feet tall door find a printable ruler/yardstick on the internet that has inch's and cm's then import that into Second Life!Next put a SL grid chart behind itresize the ruler until the right side of it lines up with the Second life grid meters perfectly!get a Linden Made Builder's Tape Measure that can be found free at my place in my picks!click it till it turns into a door then put the door next to the left side of the ruler!Done! now you have a perfectly alined Hight detector! =) now you can resize the prim blocks to see what size of a block is 1 foot ins econdlife by using these method! ;) FYI.. the 7 on the ruler will now match the door itself! have fun arguing with me after these changes i have now made!Note: Second Life is smaller then real life! if you take a avatar and put it on your desk it is in fact the size of a real life ink pen! that can be meshrued by a real life ruler! Fact:4: 1 "Real Life" inch is 1 "Second Life" meter Fact 5: 1 "Real Life" cm = 1 "Second Life" Foot =) Fact 6: 1 cm = 10 mm Fact 7: 25.4 mm = 1 inch Fact 8: 1 mm = 0.0394 inches "So there for": 1 SL foot = 0.39400 in Secondlife prim Size! i have pic at bottem! =) Done: then you will have a "100% "right and true" avatar hight detector" More: even the person who made these next Link did the same thing! http://wiki.secondlife.com/wiki/User:Ethos_Erlanger -------------------------------------------------------------------------------------------------------------------------------------------------------------------all items that you see in the movies and photos is now one click away from geting your hands on for 0 L$ just to see if i am lying or cheating in any way by looking at the prim sizes! the 4 inch ruler is on a 4 meter prim ^_^https://marketplace.secondlife.com/p/proof-that-20-meters-is-5-feet-1-not-6-foot-6-look-at-all-the-prim-sizes-to-see-that-im-not-cheating-in-any-way/3111753and now it is posted all over youtube useing 2 videos! ^_^ 1st video is a video of what you see above but 2nd video is a "live video" to show the world that im not cheating in scale ^^