13 years dog age in human years

If your dog age is 13 years you can calculate dog age in human years according to dog size, here are the some calculations:

Dog Years to Human Years by Size

Size of Dog =>	Small 20 lbs or less	Medium 21 - 50 lbs	Large 51 - 100 lbs	Giant 100+ lbs
Age of Dog	Age in human years
2 months	1.5	1.5	1.5	1.2
6 months	5	5	5	4.5
8 months	9	9	9	8
1 year	15	15	15	12
2 years	24	24	24	22
3 years	28	28	28	31
4 years	32	32	32	38
5 years	36	36	36	45
6 years	40	42	45	49
7 years	44	47	50	56
8 years	48	51	55	64
9 years	52	56	61	71
10 years	56	60	66	79
11 years	60	65	72	86
12 years	64	69	77	93
13 years	68	74	82	100
14 years	72	78	88	107
15 years	76	83	93	114
16 years	80	87	99	121