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Quilt Sizes
Standard baby quilt dimensions: 40″ wide × 52″ long (102×132 cm, or 3.33×4.33 ft).
Baby quilts are the most-gifted quilt size in the world — and the easiest entry point into quilting. At 40×52" they're roughly half the size of a throw, finish in 8–15 hours of sewing, and use under 3 yards of fabric. Use them as crib coverlets, stroller blankets, tummy-time mats, or just photo-shoot backdrops.
Not every baby quilt is the same size. These are the common variations published in modern quilt pattern books:
| Variation | Width | Length |
|---|---|---|
| Tummy-time mat | 36″ | 36″ |
| Stroller blanket | 30″ | 36″ |
| Standard crib quilt | 40″ | 52″ |
| Generous crib quilt | 45″ | 60″ |
| Bassinet quilt | 16″ | 32″ |
Before crib bedding became commercialized in the 1950s, every American baby slept under a hand-pieced quilt — usually one made by a grandmother or aunt during the pregnancy. The 36×52" 'cradle quilt' was the most common size in 19th-century pattern books. Modern crib quilts standardized at 40×52" to fit the post-1973 federal crib-mattress dimensions (27¼ × 51⅝"), giving a few inches of overhang on each side.
~102 × 132 cm
40×52" converts to ~102×132 cm. UK cot quilts often measure 100×120 cm.
~102 × 132 cm
Australian standard cot quilts are 100×130 cm, very close to US crib quilts.
A standard baby quilt is 40 × 52 inches (width × length).
A standard baby quilt is 102 × 132 cm, or about 1.0 × 1.3 meters.
A standard baby quilt is about 3.33 × 4.33 feet.
| Variation | Inches | Centimeters | Feet |
|---|---|---|---|
| Tummy-time mat | 36″ × 36″ | 91 × 91 cm | 3.0 × 3.0 ft |
| Stroller blanket | 30″ × 36″ | 76 × 91 cm | 2.5 × 3.0 ft |
| Standard crib quilt | 40″ × 52″ | 102 × 132 cm | 3.3 × 4.3 ft |
| Generous crib quilt | 45″ × 60″ | 114 × 152 cm | 3.8 × 5.0 ft |
| Bassinet quilt | 16″ × 32″ | 41 × 81 cm | 1.3 × 2.7 ft |
Use the yardage calculator for an exact estimate by pattern type, or the backing calculator to see whether you need pieced backing or 108″ wide-back fabric.
About 2.75 yards of backing plus top fabric — here's where to buy it.
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A standard baby (crib) quilt is 40 inches wide by 52 inches long (40×52"). This fits a standard crib mattress (28×52") with a few inches of overlap on each side. Smaller variations include 36×36" tummy-time mats and 30×36" stroller blankets.
A crib quilt should measure between 36×52" and 45×60". The most common dimension is 40×52", which matches the standard crib mattress (28×52") with about 6 inches of side overhang. Do not make crib quilts larger than 52×60" — oversized quilts pose a suffocation risk for infants.
A standard 40×52" baby quilt measures approximately 102×132 cm. UK and Australian cot quilts are typically 100×120 cm or 100×130 cm — slightly smaller than the US standard but functionally equivalent.
A 40×52" baby quilt needs about 4 yards total: roughly 1 yard for the quilt top (split among multiple prints), 2¾ yards for a pieced backing, and ⅓ yard for binding. The backing does need a seam — once you add the usual 4" margin on every side it measures 48×60", which is wider than the 42" a 44" bolt gives you. A single 1½-yard cut of 108" wide-back avoids the seam entirely.
Buy batting at least 48×60" for a 40×52" baby quilt — 4 inches of overhang on every side. Pre-cut craft batting (45×60") works for a 36×52" mini-baby quilt but is too small for a standard crib quilt with proper overhang.
Compare all standard quilt sizes — wall hanging to king — on the master quilt sizes chart.
View All Quilt Sizes