Dog Years to Human Years

Written by FurStage Editorial TeamUpdated: September 5, 2026

A 1-year-old dog is about 15 human years, and by age 10 that’s roughly 56–79 depending on size.

The old ×7 rule is wrong. Dogs age fast early then slow, and larger dogs age quicker. Here is the full AKC size-based chart.

Dog age	Small	Medium	Large	Giant
1	15	15	15	12
2	24	24	24	22
3	28	28	28	31
4	32	32	32	38
5	36	36	36	45
6	40	42	45	49
7	44	47	50	56
8	48	51	55	64
9	52	56	61	71
10	56	60	66	79
11	60	65	72	86
12	64	69	77	93
13	68	74	82	100
14	72	78	88	107
15	76	83	93	114
16	80	87	99	121

General guidance only — not veterinary advice and not for emergencies. Consult your vet for any health decision. Sources: AKC.

Calculate your dog's exact age

Age (years)Size

Expected lifespan scenario, years (optional)Dogs enter senior care in the last quarter of estimated lifespan (AAHA). Enter an estimate discussed with your veterinarian, from 2 to 30 years. This is a scenario, not a prediction; without it we show no dog-stage countdown.

Enter your dog's age to see its human-equivalent age and life stage.

ToolOpen the Dog Age Calculator GuideOpen the standalone dog age chart

Dog age	Small	Medium	Large	Giant
1	15	15	15	12
2	24	24	24	22
3	28	28	28	31
4	32	32	32	38
5	36	36	36	45
6	40	42	45	49
7	44	47	50	56
8	48	51	55	64
9	52	56	61	71
10	56	60	66	79
11	60	65	72	86
12	64	69	77	93
13	68	74	82	100
14	72	78	88	107
15	76	83	93	114
16	80	87	99	121

Dog age	Small	Medium	Large	Giant
1	15	15	15	12
2	24	24	24	22
3	28	28	28	31
4	32	32	32	38
5	36	36	36	45
6	40	42	45	49
7	44	47	50	56
8	48	51	55	64
9	52	56	61	71
10	56	60	66	79
11	60	65	72	86
12	64	69	77	93
13	68	74	82	100
14	72	78	88	107
15	76	83	93	114
16	80	87	99	121

Dog age	Small	Medium	Large	Giant
1	15	15	15	12
2	24	24	24	22
3	28	28	28	31
4	32	32	32	38
5	36	36	36	45
6	40	42	45	49
7	44	47	50	56
8	48	51	55	64
9	52	56	61	71
10	56	60	66	79
11	60	65	72	86
12	64	69	77	93
13	68	74	82	100
14	72	78	88	107
15	76	83	93	114
16	80	87	99	121