July 4th 2027
July 4th size for a baby born in September
A baby born in September 2026 will be about 10 months old on July 4th, July 4, 2027.
- Carter's9M
- Old Navy6-12M
- Cat & Jack12M
- babyGap6-12M
Typical size that day: about 19.2 lb and 28.3 in.That's summer. Think short sleeves, rompers, and breathable fabrics.
Worked out for a birth date in the middle of September, a baby in the middle of the WHO growth chart, and room to grow. A birthday early or late in the month, or a baby who is longer or lighter than average, can land a size apart. The calculator below uses the exact date and your measurements. Last updated October 10, 2026.
Born September 2026: 10 months old on July 4th
Typical size: about 19.2 lb, 28.3 in long.
- Carter'scould be 12M9M
- Old NavyConfident match6-12M
- Cat & JackConfident match12M
- babyGapConfident match6-12M
- OshKosh B'goshcould be 12M9M
- Gerber Childrenswearcould be 6-9M12M
- The Children's PlaceConfident match6-9M
- Wonder NationConfident match12M
- Cloud IslandConfident match12M
- Little SleepiesConfident match6-12M
- Kyte BabyConfident match6-12M
- Hanna Anderssoncould be 70 cm75 cm
- Burt's Bees Babycould be 12M6-9M
- NikeConfident match9M
- PrimaryConfident match9-12M
- Posh Peanutcould be 9-12M6-12M
- Janie and JackConfident match6-12M
- GymboreeBelow the smallest verified sizeunder 12-18M
- Mini BodenConfident match6-9M
- Tea CollectionConfident match9-12M
- Magnetic Mecould be 6-9M9-12M
- Monica + Andycould be 6-9M9-12M
- Kate QuinnConfident match6-12M
- Bellabu Bearcould be 6-9M9-12M
- Angel DearConfident match6-12M
- Kickee Pantscould be 6-12M9-12M
- L'ovedbabycould be 6-9M9-12M
- PehrConfident match6-12M
Born September 2025: 22 months old on July 4th
Typical size: about 25 lb, 33.4 in long.
- Carter'scould be 2T24M
- Old Navycould be 2T18-24M
- Cat & Jackcould be 24M2T
- babyGapcould be 18-24M2Y
- OshKosh B'goshcould be 2T24M
- Gerber Childrenswearcould be 3T24M/2T
- The Children's Placecould be 2T18-24M
- Wonder Nationcould be 3T2T
- Cloud IslandConfident match24M
- Little Sleepiescould be 12-18M or 18-24M2T
- Kyte Babycould be 18-24M2T
- Hanna Anderssoncould be 90 cm85 cm
- Burt's Bees Babycould be 2T24M
- Nikecould be 24M or 2T18M
- Primarycould be 18-24M2
- Posh Peanutcould be 12-18M or 2T18-24M
- Janie and Jackcould be 18-24M2T
- Gymboreecould be 2T18-24M
- Mini Bodencould be 18-24M, 2Y12-18M
- Tea Collectioncould be 12-18M or 18-24M2T
- Magnetic Mecould be 2T18-24M
- Monica + AndyPast the largest listed size18-24M+
- Kate Quinncould be 12-18M18-24M
- Bellabu Bearcould be 18-24M or 2T2/3T
- Angel Dearcould be 12-18M or 18-24M2T
- Kickee Pantscould be 18-24M2T
- L'ovedbabycould be 18-24M12-18M
- Pehrcould be 2T18-24M
Born September 2024: 2 years, 10 months old on July 4th
Typical size: about 30.1 lb, 37 in tall.
- Carter'scould be 2T3T
- Old NavyConfident match3T
- Cat & Jackcould be 4T3T
- babyGapConfident match3Y
- OshKosh B'goshcould be 2T3T
- Gerber ChildrenswearConfident match3T
- The Children's PlaceConfident match3T
- Wonder Nationcould be 4T3T
- Cloud IslandPast the largest listed size24M+
- Little SleepiesConfident match3T
- Kyte Babycould be 4T3T
- Hanna Anderssoncould be 100 cm90 cm
- Burt's Bees Babycould be 2T3T
- NikeConfident match3T
- PrimaryConfident match3
- Posh PeanutConfident match3T
- Janie and JackConfident match3
- GymboreeConfident match3T
- Mini Boden3Y2-3Y, 3Y
- Tea CollectionConfident match3T
- Magnetic Mecould be 4T3T
- Monica + AndyPast the largest listed size18-24M+
- Kate Quinncould be 3T2T
- Bellabu Bearcould be 4T3T
- Angel DearConfident match3T
- Kickee Pantscould be 4T3T
- L'ovedbabyPast the largest listed size18-24M+
- Pehrcould be 3T2T
Born September 2023: 3 years, 10 months old on July 4th
Typical size: about 34.8 lb, 40 in tall.
- Carter'sConfident match4T
- Old NavyConfident match4T
- Cat & JackConfident match4T
- babyGapConfident match4Y
- OshKosh B'goshConfident match4T
- Gerber ChildrenswearPast the largest listed size4T+
- The Children's PlaceConfident match4T
- Wonder NationConfident match4T
- Cloud IslandPast the largest listed size24M+
- Little SleepiesConfident match4T
- Kyte BabyConfident match4T
- Hanna AnderssonConfident match100 cm
- Burt's Bees BabyConfident match4T
- NikeConfident match4T
- PrimaryConfident match4
- Posh PeanutConfident match4T
- Janie and JackConfident match4
- GymboreeConfident match4T
- Mini Boden4Y3-4Y, 4Y
- Tea CollectionConfident match4T
- Magnetic MePast the largest listed size4T+
- Monica + AndyPast the largest listed size18-24M+
- Kate Quinncould be 3T4T
- Bellabu BearPast the largest listed size4T+
- Angel DearConfident match4T
- Kickee PantsPast the largest listed size4T+
- L'ovedbabyPast the largest listed size18-24M+
- PehrConfident match4T
Exact answer
Enter the exact birth date
Start with a birth or due date
Sizes for each brand you pick will appear here, ready for the date you choose.