text: Size According to the FCI standard the male stands 72 to 76 cm and not more than 78 cm at the withers compared to the female's 68–72 cm and not more than 74 cm. The male weighs between 50 and 60 kg (110-132 lbs), and the females weigh between 45 and 50 kg (99-110 lbs). Nowadays, even larger individuals are tolerated if the dog is well proportioned and retains correct movements. Dogs exhibited by the kennel club are slightly taller by about half an inch.
  At maturity (over 18 months of age), the AKC standard recommends 27-30 inches for males with the desired height between 27 and 29 inches and 26 and 29 inches for females with the desired height between 26 and 28 inches. A mature male less than 27 inches or more than 30 inches at the withers is considered a serious fault. A mature female less than 26 inches or more than 29 inches at the withers is considered a serious fault. Although the standard also states "Height consideration should not outweigh that of type, proportion, movement and other functional attributes." In proportions, a Black Russian Terrier should be slightly longer than tall, a ratio of 9 ½ to 10 being ideal.