Here, I am going to list the normal weights of the various bulldog/Molosser breeds - males only.
( I did not list the long-haired mastiffs )
*Small Molosser Breeds: ( below 70 pounds )
1- Pug - 18 to 20 pounds. ( probably 100% ).
2- French Bulldog - 12 to 25 pounds. ( probably 100% ).
3- Boston Terrier - 15 to 25 pounds. ( roughly 50% ).
4- Miniature Bull Terrier - 20 to 35 pounds. ( roughly 50% ).
5- Staffordshire Bull Terrier - 28 to 38 pounds. ( roughly 50% ).
6- Chinese Shar-Pei - 35 to 44 pounds. ( less than 50% ).
7- Miniature Boxer - 25 to 55 pounds. ( 100% ).
8- English Bulldog - 40 to 50 pounds. ( 100% ).
9- Thai Ridgeback - 35 to 55 pounds. ( less than 50% ).
10- Chongqing Dog - 44 to 54 pounds. ( possibly 50% ).
11- Continental Bulldog - 55 to 66 pounds. ( 100% ).
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*Medium-Small Breed: American Bully.
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*Medium Molosser Breeds: ( 70 - 100 pounds )
1- American Staffordshire Terrier - 40 to 70 pounds. ( roughly 50% ).
2- Valley Bulldog - 40 to 70 pounds. ( 100% ).
3- Bull Terrier - 50 to 70 pounds. ( roughly 50% ).
4- American Pit Bull Terrier - 55 to 70 pounds. ( roughly 50% ).
5- Victorian Bulldog - 55 to 75 pounds. ( 100% ).
6- Australian Bulldog - 60 to 78 pounds. ( 100% ).
7- Boxer - 65 to 80 pounds. ( 100% ).
8- Black Mouth Cur - 45 to 100 pounds. ( probably less than 50% ).
9- Rhodesian Ridgeback - 80 pounds. ( less than 50% ).
10- Ca de Bou - 77 to 84 pounds. ( probably 100% ).
11- Banter Bulldogge - 50 to 85 pounds. ( 100% ).
12- Serrano Bulldog - 68 to 88 pounds. ( 100% ).
13- Alano Español - 75 to 88 pounds. ( 100% ).
14- Alapaha Blue-Blood Bulldog - 50 to 90 pounds. ( 100% ).
15- Campiero Bulldog - 79 to 93 pounds. ( 100% ).
16- Doberman - 88 to 99 pounds. ( less than 50% ).
17- Catahoula Bulldog - 75 to 100 pounds. ( 50% ).
18- Dogo Argentino - 80 to 100 pounds. ( 100% ).
19- American Bulldog ( Scott type ) - 80 to 100 pounds. ( 100% ).
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*Large Molosser Breeds: ( 100+ pounds )
1- Bull Arab - 66 to 110 pounds. ( less than 50% ).
2- Cane Corso - 110 pounds. ( 100% ).
3- American bull Molosser - 85 to 115 pounds. ( over 50% ).
4- American bulldog ( Johnson type ) - 90-120 lbs. ( 100% ).
5- Olde English Bulldogge - 65 to 130 pounds. ( 100% ).
6- Gull Dong - 90 to 140 pounds. ( less than 50% ).
7- Canis Panther - 120 to 140 pounds. ( less than 50% ).
8- Antebellum Bulldog - 80 to 150 pounds. ( 100% ).
9- Rottweiler - 110 to 130 pounds. ( possibly 50% ).
10- Bullmastiff - 110 to 130 pounds. ( 100% ).
11- Perro de Presa Canario - 130 pounds. ( 100% ).
12- Spanish Mastiff - 110 to 150 pounds. ( 100% ).
13- Dogue de Bordeaux - 110 to 150 pounds. ( 100% ).
14- Neapolitan Mastiff - 110 to 150 pounds. ( 100% ).
15- Serbian Defense Dog - 120 to 150 pounds. ( roughly 50% ).
16- Great Dane - 120 to 180 pounds. ( roughly 50% ).
17- Fila Brasileiro - 140 to 180 pounds. ( roughly 75% ).
18- Tosa Inu - 130 to 200 pounds. ( roughly 50% ).
19- Boerboel - 150 to 200 pounds. ( 100% ).
20- Bully Kutta - 150 to 200 pounds. ( less than 50% ).
21- American Mastiff - 160 to 200 pounds. ( 100% ).
22- English Mastiff - 150 to 250 pounds. ( 100% ).
23- American Molossus - 200 to 250 pounds. ( 100% ).
24- Ancient Molossus - 200 to 300 pounds. ( extinct - weight estimated ) -( 100% of course - all others derived from this dog ).