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Baby Size By Date

Father's Day 2027

What size for Father's Day?

Father's Day is June 20, 2027, 253 days from when this page was last updated (October 10, 2026). That's summer. Think short sleeves, rompers, and breathable fabrics.

Example: a baby born in December 2026 will be about 6 months old that day. Typical sizes: Carter's 6M, Old Navy 3-6M, Cat & Jack 6-9M.

Father's Day 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.

BornAge that dayCarter'sOld NavyCat & JackbabyGapOshKosh B'goshGerber Childrenswear
Jun 20271 weekNewborn0-3MNewborn0-3Munder 3MNewborn
May 20271 month3M0-3M0-3M0-3M3M0-6M
Apr 20272 months3M0-3M3-6M3-6M3M3-6M
Mar 20273 months6M3-6M3-6M3-6M6M3-6M
Feb 20274 months6M3-6M3-6M3-6M6M3-6M
Jan 20275 months6M3-6M6-9M3-6M6M3-6M
Dec 20266 months6M3-6M6-9M3-6M6M6-9M
Nov 20267 months9M6-12M6-9M6-12M9M6-9M
Oct 20268 months9M6-12M6-9M6-12M9M6-9M
Sep 20269 months9M6-12M12M6-12M9M12M
Aug 202610 months12M6-12M12M6-12M12M12M
Jul 202611 months12M6-12M12M6-12M12M12M
Jun 202612 months12M12-18M12M12-18M12M12M
May 202613 months18M12-18M12M12-18M18M18M
Apr 202614 months18M12-18M12M12-18M18M18M
Mar 202615 months18M12-18M18M12-18M18M18M
Feb 202616 months18M12-18M18M18-24M18M18M
Jan 202617 months18M18-24M18M18-24M18M18M
Dec 202518 months24M18-24M18M18-24M24M24M/2T
Nov 202519 months24M18-24M18M18-24M24M24M/2T
Oct 202520 months24M18-24M24M18-24M24M24M/2T
Sep 202521 months24M18-24M2T2Y24M24M/2T
Aug 202522 months24M18-24M2T2Y24M24M/2T
Jul 202523 months24M2T2T2Y24M24M/2T
Jun 20252 years2T2T2T2Y2T3T
May 20252 years, 1 month2T2T2T2Y2T3T
Apr 20252 years, 2 months2T2T2T2Y2T3T
Mar 20252 years, 3 months2T2T2T2Y2T3T
Feb 20252 years, 4 months2T2T2T2Y2T3T
Jan 20252 years, 5 months2T2T3T2Y2T3T
Dec 20242 years, 6 months2T3T3T3Y2T3T

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 Father's Day

Baby is
How should we size this?

Baby's latest measurements

For the growth chart

Only used to choose the growth curve. Not sure uses the average of both.

What is the occasion?

Which brands?

Fit preference

When baby lands between two sizes, room to grow picks the larger one.

Start with a birth or due date

Sizes for each brand you pick will appear here, ready for the date you choose.

By birth month

Brand size charts