Baby Blanket Size Chart & Complete Guide
Find the perfect baby blanket size for receiving, swaddling, cribs, strollers, and more. Includes standard dimensions, safety tips, and size recommendations by age.

Receiving Blanket:
30×30 to 35×35 inches (76×76 to 89×89 cm)
Swaddle Blanket:
40×40 to 48×48 inches (102×102 to 122×122 cm)
Crib Blanket:
36×52 to 40×60 inches (91×132 to 102×152 cm)
Crochet/Afghan:
30×40 inches (76×102 cm)
Choosing the right baby blanket size is essential for your baby's comfort, safety, and the blanket's intended use. Whether you're shopping for a receiving blanket, swaddle, crib blanket, or making your own crochet blanket, this comprehensive guide covers all standard dimensions and recommendations.
Complete Baby Blanket Size Chart
| Blanket Type | Dimensions (Inches) | Dimensions (cm) | Best For |
|---|---|---|---|
| Receiving Blanket | 30×30 to 35×35 | 76×76 to 89×89 | Newborns, swaddling, burp cloth, changing pad |
| Swaddle Blanket | 40×40 to 48×48 | 102×102 to 122×122 | Wrapping newborns, secure swaddling |
| Crib Blanket | 36×52 to 40×60 | 91×132 to 102×152 | Cribs (babies 12+ months), toddler beds |
| Crochet/Afghan Blanket | 30×40 | 76×102 | Newborns, general use, handmade gifts |
| Stroller Blanket | 30×36 | 76×91 | Strollers, car seats, outdoor use |
| Play Mat Blanket | 40×40 | 102×102 | Tummy time, play area, floor activities |
| Toddler Blanket | 42×52 to 46×58 | 107×132 to 117×147 | Toddlers (1-3 years), larger coverage |
| Lovey/Security Blanket | 12×12 | 30×30 | Comfort object, small enough to carry |
Baby Blanket Sizes by Use
Standard Size: 30×30 to 35×35 inches (76×76 to 89×89 cm)
Receiving blankets are the most versatile baby blankets. They're perfect for swaddling newborns, serving as a burp cloth, changing pad cover, or nursing cover. The square shape makes them easy to fold and carry. Most receiving blankets are made from soft, breathable materials like cotton muslin or flannel.
Why this size: Large enough to securely wrap a newborn but small enough to be portable and easy to manage. The 35×35 inch size offers more versatility for larger babies or if you prefer a looser swaddle.
Standard Size: 40×40 to 48×48 inches (102×102 to 122×122 cm)
Swaddle blankets need to be large enough to securely wrap your baby while keeping their arms and legs comfortably contained. The larger size (48×48 inches) is recommended for older babies (3-6 months) or if you prefer a more secure wrap with extra fabric to tuck.
Why this size: Must be large enough to wrap around the baby's body multiple times for a secure swaddle. Too small and the blanket won't stay in place; too large and it becomes difficult to manage.
Standard Size: 36×52 to 40×60 inches (91×132 to 102×152 cm)
Crib blankets are designed to fit standard crib mattresses, which are typically 28×52 inches. The blanket should be large enough to cover the mattress with some overhang but not so large that it poses a safety risk.
⚠️ Important Safety Note:
The American Academy of Pediatrics (AAP) recommends that babies under 12 months should NOT sleep with loose blankets in their cribs due to SIDS risk. For babies 12+ months, ensure the blanket is securely tucked and cannot cover the baby's face. Consider using sleep sacks or wearable blankets for younger babies.
Standard Size: 30×40 inches (76×102 cm)
Crochet baby blankets, also known as baby afghans, are a popular handmade gift. The 30×40 inch size is the most common because it's large enough to be useful but not so large that it takes forever to complete. This size works well for newborns and can be used for swaddling, receiving, or as a play mat.
For crocheters: This size typically requires about 1,200-1,500 yards of yarn depending on your stitch pattern and yarn weight. It's a manageable project size that makes a meaningful gift.
Standard Size: 30×36 inches (76×91 cm)
Stroller blankets are designed to fit comfortably in strollers and car seats without dragging on the ground. They should be large enough to cover your baby but compact enough to be portable and easy to store.
Why this size: The rectangular shape fits well in strollers, and the size is perfect for covering a baby without excess fabric that could get caught in wheels or become a tripping hazard.
Baby Blanket Size by Age
Newborn (0-3 months)
Use receiving blankets (30×30 to 35×35 inches) or swaddle blankets (40×40 to 48×48 inches). These sizes are perfect for swaddling and keeping your newborn warm and secure.
Infant (3-12 months)
Continue using swaddle blankets if your baby still enjoys being swaddled. For play areas, consider a 40×40 inch play mat blanket. Remember: No loose blankets in cribs for babies under 12 months.
Toddler (12+ months)
Crib blankets (36×52 to 40×60 inches) are now safe to use. Ensure the blanket is securely tucked and cannot cover your toddler's face. Toddler blankets (42×52 to 46×58 inches) provide more coverage for active sleepers.
- Babies under 12 months: Do not use loose blankets in cribs. Use sleep sacks or wearable blankets instead to reduce SIDS risk.
- Always ensure proper fit: Blankets should not be so large that they can easily cover a baby's face or become tangled.
- Check for loose threads: Regularly inspect blankets for loose threads, holes, or fraying edges that could pose a choking hazard.
- Material matters: Choose breathable materials like cotton. Avoid heavy materials that could cause overheating.
- Supervised use only: When using blankets for swaddling or play, always supervise your baby.
Frequently Asked Questions
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