Baby Age Calculator
Baby age, week by week

Baby Age Week by Week

The first year, one week at a time. Tap your baby's week to see how many months that is and what's happening around that age.

<1 mo

Week 1

7 days<1 mo

Week 2

14 days~1 mo

Week 3

21 days~1 mo

Week 4

28 days🌟 1 Month

Week 5

35 days~1 mo

Week 6

42 days~2 mo

Week 7

49 days~2 mo

Week 8

56 days🎈 2 Months

Week 9

63 days~2 mo

Week 10

70 days~3 mo

Week 11

77 days~3 mo

Week 12

84 days🎉 3 Months

Week 13

91 days~3 mo

Week 14

98 days💯 100 Days

Week 15

105 days~4 mo

Week 16

112 days~4 mo

Week 17

119 days🎭 4 Months

Week 18

126 days~4 mo

Week 19

133 days~5 mo

Week 20

140 days~5 mo

Week 21

147 days🎪 5 Months

Week 22

154 days~5 mo

Week 23

161 days~6 mo

Week 24

168 days~6 mo

Week 25

175 days🎂 6 Months

Week 26

182 days~6 mo

Week 27

189 days~6 mo

Week 28

196 days🎊 200 Days

Week 29

203 days🎨 7 Months

Week 30

210 days~7 mo

Week 31

217 days~7 mo

Week 32

224 days~8 mo

Week 33

231 days~8 mo

Week 34

238 days🎯 8 Months

Week 35

245 days~8 mo

Week 36

252 days~9 mo

Week 37

259 days~9 mo

Week 38

266 days🎵 9 Months

Week 39

273 days~9 mo

Week 40

280 days~9 mo

Week 41

287 days~10 mo

Week 42

294 days🎡 10 Months

Week 43

301 days~10 mo

Week 44

308 days~10 mo

Week 45

315 days~11 mo

Week 46

322 days~11 mo

Week 47

329 days🎢 11 Months

Week 48

336 days~11 mo

Week 49

343 days~11 mo

Week 50

350 days~12 mo

Week 51

357 days🎠 12 Months

Week 52

364 days