Large dog breeds

50–60 lb · 12–18 years

50–70 lb · 11–14 years

85 lb (male), 75 lb (female) · 10–14 years

75–100 lb (male), 60–80 lb (female) · 10–12 years

45–65 lb · 11–12 years

65–70 lb (male), 60–65 lb (female) · 11–13 years

45–75 lb (male), 35–65 lb (female) · 12–15 years

55–70 lb (male), 40–55 lb (female) · 12–16 years

48–70 lb · 13–15 years

50–65 lb (male), 40–55 lb (female) · 12–15 years

44–55 lb (male), 33–44 lb (female) · 12–15 years

55–60 lb (male), 46–57 lb (female) · 12–14 years

35–65 lb · 12–14 years

40–65 lb · 12–13 years

37–66 lb · 12–15 years

45–55 lb · 12–14 years

55–65 lb · 10–12 years

60–80 lb (male), 40–60 lb (female) · 14–16 years

55–75 lb (male), 45–60 lb (female) · 12–14 years

55–75 lb (male), 45–60 lb (female) · 12–14 years

70–84 lb (male), 57–71 lb (female) · 13–15 years

50–70 lb · 12–13 years

50–55 lb (male), 45–50 lb (female) · 11–12 years

55–80 lb (male), 45–65 lb (female) · 11–12 years

41–60 lb (male), 37–53 lb (female) · 12–15 years

30–55 lb · 12–15 years

61.5–77.5 lb (male), 48.5–62 lb (female) · 12–16 years

66–70 lb (male), 55–60 lb (female) · 10–12 years

55–90 lb · 10–14 years

35–53 lb · 10–12 years

40–55 lb · 12–15 years

40–58 lb · 12–15 years

55–100 lb · 12 years

50–70 lb · 12–13 years

70–100 lb · 11–12 years

45–55 lb (male), 35–45 lb (female) · 12–15 years

66–88 lb (male), 40–66 lb (female) · 10–15 years

30–55 lb · 12–15 years

50–95 lb · 10–14 years

65–80 lb (male), 55–70 lb (female) · 10–13 years

45–60 lb · 8–12 years

55–90 lb (male), 50–65 lb (female) · 12–15 years

45–70 lb · 8–12 years

70–85 lb (male), 55–70 lb (female) · 10–12 years

60–75 lb (male), 50–65 lb (female) · 12–14 years

60–95 lb · 10–12 years

45–70 lb · 11–13 years

40–55 lb · 12–14 years

75–100 lb (male), 60–90 lb (female) · 10–12 years

80–100 lb · 9–15 years

70–73 lb (male), 55–60 lb (female) · 11–14 years

42–75 lb · 11–14 years

60–75 lb · 10–13 years

65–80 lb (male), 45–55 lb (female) · 12 years

50–65 lb (male), 40–55 lb (female) · 11–13 years

40–70 lb · 12–16 years

33–53 lb · 12–15 years

60–70 lb · 8–10 years

50–60 lb · 10–12 years

55–80 lb · 12–14 years

65–90 lb (male), 50–70 lb (female) · 12–14 years

55–70 lb (male), 45–60 lb (female) · 10–12 years

50–70 lb · 14–16 years

75–95 lb (male), 55–80 lb (female) · 10–13 years

65–75 lb (male), 55–65 lb (female) · 10–12 years

55–80 lb (male), 45–70 lb (female) · 12–13 years

100 lb and up (male), 85 lb and up (female) · 10–12 years

65–70 lb (male), 60–65 lb (female) · 10–13 years

40–75 lb · 14–17 years

79–99 lb · 10–14 years

45–60 lb · 12–15 years

44–66 lb · 12–15 years

65–90 lb · 10–14 years

42–60 lb (male), 35–50 lb (female) · 11–15 years

70 lb (male), 60 lb (female) · 12–15 years

55–68 lb (male), 45–58 lb (female) · 12–13 years

65–75 lb (male), 55–65 lb (female) · 10–12 years

30–60 lb · 12–15 years

100 lb and up (male), 80 lb and up (female) · 10–12 years

65–80 lb (male), 55–70 lb (female) · 11–13 years

70 lb · 10–14 years

50–70 lb · 12–14 years

30–60 lb · 10–13 years

55 lb (male), 48 lb (female) · 12–15 years

60–100 lb · 10–12 years

Small 8.5–17.5 lb; Medium 17.5–26.5 lb; Large 26.5–55 lb · 12–14 years

45–55 lb · 12–14 years

50–60 lb (male), 40–55 lb (female) · 12–14 years

55–75 lb (male), 45–65 lb (female) · 12–15 years

60–70 lb (male), 40–50 lb (female) · 10–18 years

55–62 lb · 12–13 years

Large 44–66 lb; Medium 35–44 lb · 10–15 years

35–59 lb · 14 years

37.5–59 lb · 12–13 years

42–60 lb (male), 35–50 lb (female) · 11–13 years

45–70 lb · 14 years

45–70 lb · 12–15 years

85 lb (male), 70 lb (female) · 10–12 years

70–100 lb · 12–14 years

40–65 lb · 10–17 years

45–65 lb (male), 35–50 lb (female) · 12–14 years

26–55 lb · 12–15 years

39–62 lb · 11–13 years

35–55 lb · 10–12 years

45–60 lb (male), 35–50 lb (female) · 12–14 years

40–65 lb · 10–15 years

50–65 lb · 12–15 years

68–97 lb · 11–13 years

40–60 lb · 12–14 years

70.5–81.6 lb (male), 61.7–66.1 lb (female) · 10–12 years

40–60 lb · 13–15 years

35–75 lb · 14–15 years

50–70 lb · 12–13 years

55–60 lb (male), 44–55 lb (female) · 12–14 years

70–90 lb (male), 55–75 lb (female) · 10–13 years

40–55 lb (male), 35–50 lb (female) · 12–15 years

50–75 lb · 13 years

50–70 lb (male), 35–50 lb (female) · 12–15 years

55–65 lb (male), 45–55 lb (female) · 12–14 years

28–60 lb · 12–15 years

Toy 10–15 lb; Miniature 15–30 lb; Standard 30–55 lb · 13–18 years

40–55 lb · 10–12 years