Halloween 2026
What size for Halloween?
Halloween is October 31, 2026, 21 days from when this page was last updated (October 10, 2026). That's fall. Think long sleeves and layers that are easy to add or remove.
Example: a baby born in May 2026 will be about 6 months old that day. Typical sizes: Carter's 6M, Old Navy 3-6M, Cat & Jack 6-9M.
Halloween size by birth month
For a baby in the middle of the growth chart, born mid-month, with room to grow. Pick a birth month for all 28 brands.
| Born | Age that day | Carter's | Old Navy | Cat & Jack | babyGap | OshKosh B'gosh | Gerber Childrenswear |
|---|---|---|---|---|---|---|---|
| Oct 2026 | 2 weeks | Newborn | 0-3M | 0-3M | 0-3M | under 3M | 0-3M |
| Sep 2026 | 2 months | 3M | 0-3M | 0-3M | 0-3M | 3M | 0-6M |
| Aug 2026 | 3 months | 6M | 0-3M | 3-6M | 3-6M | 6M | 3-6M |
| Jul 2026 | 4 months | 6M | 3-6M | 3-6M | 3-6M | 6M | 3-6M |
| Jun 2026 | 5 months | 6M | 3-6M | 3-6M | 3-6M | 6M | 3-6M |
| May 2026 | 6 months | 6M | 3-6M | 6-9M | 3-6M | 6M | 6-9M |
| Apr 2026 | 7 months | 9M | 6-12M | 6-9M | 3-6M | 9M | 6-9M |
| Mar 2026 | 8 months | 9M | 6-12M | 6-9M | 6-12M | 9M | 6-9M |
| Feb 2026 | 8 months | 9M | 6-12M | 12M | 6-12M | 9M | 6-9M |
| Jan 2026 | 9 months | 9M | 6-12M | 12M | 6-12M | 9M | 12M |
| Dec 2025 | 11 months | 12M | 6-12M | 12M | 6-12M | 12M | 12M |
| Nov 2025 | 11 months | 12M | 12-18M | 12M | 12-18M | 12M | 12M |
| Oct 2025 | 13 months | 12M | 12-18M | 12M | 12-18M | 12M | 12M |
| Sep 2025 | 14 months | 18M | 12-18M | 12M | 12-18M | 18M | 18M |
| Aug 2025 | 15 months | 18M | 12-18M | 18M | 12-18M | 18M | 18M |
| Jul 2025 | 16 months | 18M | 12-18M | 18M | 12-18M | 18M | 18M |
| Jun 2025 | 17 months | 18M | 12-18M | 18M | 18-24M | 18M | 18M |
| May 2025 | 18 months | 18M | 18-24M | 18M | 18-24M | 18M | 18M |
| Apr 2025 | 19 months | 24M | 18-24M | 18M | 18-24M | 24M | 24M/2T |
| Mar 2025 | 20 months | 24M | 18-24M | 24M | 18-24M | 24M | 24M/2T |
| Feb 2025 | 20 months | 24M | 18-24M | 2T | 18-24M | 24M | 24M/2T |
| Jan 2025 | 21 months | 24M | 18-24M | 2T | 2Y | 24M | 24M/2T |
| Dec 2024 | 23 months | 24M | 18-24M | 2T | 2Y | 24M | 24M/2T |
| Nov 2024 | 23 months | 2T | 2T | 2T | 2Y | 2T | 3T |
| Oct 2024 | 2 years, 1 month | 2T | 2T | 2T | 2Y | 2T | 3T |
| Sep 2024 | 2 years, 1 month | 2T | 2T | 2T | 2Y | 2T | 3T |
| Aug 2024 | 2 years, 3 months | 2T | 2T | 2T | 2Y | 2T | 3T |
| Jul 2024 | 2 years, 4 months | 2T | 2T | 2T | 2Y | 2T | 3T |
| Jun 2024 | 2 years, 5 months | 2T | 2T | 3T | 2Y | 2T | 3T |
| May 2024 | 2 years, 6 months | 2T | 2T | 3T | 2Y | 2T | 3T |
| Apr 2024 | 2 years, 7 months | 2T | 3T | 3T | 3Y | 2T | 3T |
A plus sign means the baby will likely be past the largest size on that brand's baby and toddler chart.
Exact answer
Enter the birth date for Halloween
Start with a birth or due date
Sizes for each brand you pick will appear here, ready for the date you choose.