Baby blankets come in more sizes than you might expect
When someone asks you to crochet a baby blanket, the first question to settle is which kind of baby blanket they actually need. A blanket for a stroller is very different from one for a crib, and a tiny lovey a baby carries everywhere is different again. Getting the size right before you start saves you from finishing a beautiful piece that turns out too small to be useful or too large to fit in a bag.
The five most common sizes each serve a different purpose. Knowing them upfront lets you choose yarn, calculate stitches, and estimate your total time with confidence.
The five standard sizes
Lovey or security blanket: 14 x 14 inches. A lovey is the smallest wearable blanket, designed to be carried, chewed, and loved almost continuously. Many loveys have a stuffed animal head attached at the center, but a simple square in a soft stitch works just as well. Because it is so small, a lovey makes a fast gift -- most makers finish one in a single weekend.
Receiving blanket: 18 x 18 inches. Receiving blankets are used in the first weeks of life for swaddling, burping, and general wrapping. They need to be soft on one side and machine washable without exception. This is the size where stitch choice matters most from a safety standpoint -- see the section below on avoiding holes.
Stroller blanket: 30 x 35 inches. This is the most common size when someone says "baby blanket" without further specification. It covers a baby in a pram or stroller, works as a play mat, and can drape over a car seat. If you are making a gift and you do not know exactly what size to choose, choose this one.
Crib blanket: 36 x 54 inches. A crib blanket covers a standard crib mattress with a little extra to tuck in around the edges. This is a larger project -- plan for several weeks of regular crocheting. Many makers add a simple border to give the edges a finished look.
Toddler throw: 40 x 50 inches. A toddler throw fits a child of one to four years and works well for the sofa or the back of a car. It is the bridge between a baby blanket and a full adult lap throw.
How to calculate stitches for your target size
To find out how many stitches to cast on, you need your gauge: how many stitches and rows fit into a 4-inch square with your chosen yarn and hook. Work a swatch of at least 6 inches and measure the center 4 inches, ignoring the edges.
Divide your gauge stitches by 4 to get stitches per inch. Multiply that number by your target blanket width in inches.
Example: Your gauge is 14 double crochets per 4 inches, which is 3.5 stitches per inch. You want a 30-inch-wide stroller blanket. 3.5 x 30 = 105 stitches to chain at the start.
For the row count, divide your gauge rows by 4 to get rows per inch, then multiply by your target length. Gauge varies between makers and between yarn weights, so measuring your own swatch is the only reliable way to get this right.
Yarn amounts by size and weight
The table below gives approximate yardage for each standard baby blanket size in three common yarn weights. These are estimates based on a simple double crochet stitch -- textured stitches like the waffle stitch or the moss stitch use more yarn.
| Size | DK (approx.) | Worsted (approx.) | Bulky (approx.) | |---|---|---|---| | Lovey (14 x 14 in) | 150-200 yds | 120-160 yds | 80-100 yds | | Receiving (18 x 18 in) | 230-300 yds | 180-240 yds | 120-150 yds | | Stroller (30 x 35 in) | 550-700 yds | 400-600 yds | 280-360 yds | | Crib (36 x 54 in) | 1,000-1,300 yds | 800-1,000 yds | 550-700 yds | | Toddler throw (40 x 50 in) | 1,200-1,500 yds | 900-1,200 yds | 650-850 yds |
Always round up and buy an extra skein. If you are using more than one skein, buy them all from the same dye lot. Baby blankets are worked slowly over days or weeks, and dye lots from different batches can look noticeably different in the finished piece.
The best stitches for baby blankets
The main thing to avoid in a baby blanket is open holes large enough for a finger or toe to get caught in. Shell stitch, lace, and large open mesh patterns are all popular crochet stitches, but they are not appropriate for very young babies.
These stitches work well for baby blankets:
Moss stitch (alternating single crochet and chain-1). The moss stitch produces a soft, slightly textured fabric with very small gaps that are too small to pose any entrapment risk. It is one of the easiest textured stitches to learn.
Waffle stitch. The waffle stitch creates a ridged, three-dimensional texture that babies tend to enjoy touching. It is worked with front and back post double crochets and produces a dense, warm fabric.
Simple double crochet. A plain fabric in double crochet is the fastest way to make a baby blanket. It is soft, sturdy, and easy to care for. A simple dc blanket in a variegated yarn or two-color stripe needs no further decoration.
Basketweave stitch. Like the waffle stitch, a basketweave uses front and back post stitches to create a textured block pattern. It looks complicated but uses only two basic techniques.
Yarn fiber and washing requirements
Baby items get washed frequently, often at temperatures higher than the care label recommends. Choose a yarn that handles this without complaint.
Acrylic is the most forgiving choice. It is machine washable, tumble dryable, soft in baby-weight or DK varieties, and inexpensive. The main downside is that it does not breathe as well as natural fibers, which matters in warmer climates.
Superwash merino wool is warm, breathable, soft, and machine washable because the superwash treatment removes the scales that cause felting. It costs more than acrylic but produces a more luxurious result. Always check that the label specifically says superwash -- untreated wool will felt in the wash and become unusable.
Cotton is cool and breathable, making it a good choice for summer babies or warmer climates. It is heavier than wool or acrylic at the same yardage, washes extremely well, and has no lanolin, which matters for babies with wool sensitivities.
Avoid mohair, angora, and novelty yarns with loose fibers for any baby item. Fine loose fibers can detach and pose an inhalation hazard.
For your first baby blanket project, the crochet blanket for beginners guide walks through the whole process from choosing yarn to finishing the edges. If you are unsure which yarn to pick, the cotton yarn guide covers fiber properties and brand recommendations for baby projects.
Once you have your size and stitch sorted, the next thing to figure out is exactly how much yarn to buy -- which depends on more than just the size. The crochet gauge guide explains how to measure your gauge accurately so your stitch and row calculations come out right.