iToolsPro

Dog Age

Convert dog age to human-equivalent age by size, with life-stage reference

Enter dog age

Size

Result

24 human years
🐶 成年

Based on the AVMA rule: year 1 ≈ 15, year 2 ≈ 24, then +4 (small) / +5 (medium) / +6 (large) per year.

Age comparison

Dog age Small dog Medium dog Large dog

Note: based on the AVMA rule; the real age varies by breed, health and individual differences.

AVMA · Size-aware · Local

How old is your dog? in human years

Enter the dog age and size to get the human-equivalent age and life stage, with month and year support plus a comparison table. All local, nothing uploaded.

100% local · nothing uploaded

Features

📏
Size-aware
Small, medium and large dogs age differently - large dogs age faster - so the conversion differs by size.
🐾
Month support
Convert puppy months (e.g. 6 months ≈ 10 years), covering key 0-1 year growth.
📊
Life stage
Shows the matching life stage (puppy / young / adult / middle-aged / senior) and a comparison table.

狗龄换算指南Dog Age Guide

了解换算规则、体型差异与常见问题。The conversion rule, size differences, and answers to common questions.

换算规则The conversion rule

按美国兽医协会 (AVMA) 通用规则:狗狗第 1 年约等于人类 15 岁,第 2 年约 24 岁,之后每年小型犬 +4、中型犬 +5、大型犬 +6。月龄阶段参照幼犬成长关键点插值。

Based on the AVMA guideline: the first year equals ~15 human years, the second ~24, then +4 per year for small dogs, +5 for medium, and +6 for large. Puppy months are interpolated from key growth points.

全部在浏览器本地完成,数据不会上传。

Everything runs locally in your browser - nothing is uploaded.

体型差异Size matters

大型犬的衰老速度通常快于小型犬:同样 10 岁,小型犬约 60 岁,大型犬约 72 岁。体型选择对长期换算影响明显,请按狗狗体重归类。

Large dogs usually age faster than small ones: at age 10, a small dog is ~60 and a large dog ~72 in human years. Pick the size that matches your dog's weight.

使用步骤How to Use

  1. 输入犬龄,选择单位(岁 / 月)。Enter the dog's age and choose the unit.
  2. 选择体型(小型 / 中型 / 大型)。Pick the size category.
  3. 查看换算结果与生命阶段。Read the human-equivalent age and life stage.

常见问题FAQ

Q1. "狗一岁等于七岁"的说法对吗?Q1. Is "one dog year equals seven human years" right?

不准确。狗狗前两年成熟极快(第 1 年 ≈ 15 岁),之后增速放缓;7 倍法则严重低估幼年、高估成年。No - dogs mature very fast in the first two years (~15 in year one); the 7x rule understates puppy years and overstates adulthood.

Q2. 月龄怎么换算?Q2. How do months convert?

按幼犬成长关键点插值:1 个月 ≈ 1 岁、3 个月 ≈ 4 岁、6 个月 ≈ 10 岁、9 个月 ≈ 13 岁、1 岁 ≈ 15 岁。Interpolated from growth points: 1 mo ≈ 1, 3 mo ≈ 4, 6 mo ≈ 10, 9 mo ≈ 13, 12 mo ≈ 15 human years.

Q3. 结果一定准确吗?Q3. Is the result exact?

换算基于通用统计规则,实际受品种、遗传、饮食与健康影响,仅作参考。It follows common statistical guidelines; the real age depends on breed, genetics, diet and health - use it as a reference.