The standard throw blanket size is 50 x 60 inches (127 x 152 cm). This versatile size is perfect for draping over a couch, chair, or the foot of a bed. Oversized throws measure around 60 x 80 inches (152 x 203 cm), offering extra coverage for taller individuals or for use as a lightweight bed cover.

Standard crib blankets typically measure 36 x 52 inches (91 x 132 cm). Smaller baby blankets, sometimes called receiving blankets, are around 30 x 36 inches (76 x 91 cm). Always ensure crib blankets fit snugly and follow safe sleep guidelines — avoid oversized blankets that could pose a suffocation risk for infants.

For a queen mattress (60 x 80 inches), the ideal blanket size is 90 x 90 inches or 90 x 100 inches (229 x 229 cm or 229 x 254 cm). This allows approximately 15 inches of overhang on each side, which is the standard recommended drape. A 90 x 90 blanket gives a clean, square look, while 90 x 100 provides extra length at the foot.

A standard king blanket measures 108 x 90 or 108 x 100 inches (274 x 229 or 274 x 254 cm) — wider but shorter. A California king blanket measures 104 x 108 inches (264 x 274 cm) — narrower but longer. California king mattresses are designed for taller people (the mattress is 72 x 84 inches vs. standard king's 76 x 80 inches), so the blanket proportions reflect this. Always check your mattress dimensions before purchasing.

The standard twin blanket size is 66 x 90 inches (168 x 229 cm). For a twin XL mattress (common in college dorms), opt for a 66 x 96 inch (168 x 244 cm) blanket to accommodate the extra 5 inches of mattress length. Twin blankets provide about 14-15 inches of overhang on each side of a standard 38-inch wide mattress.

A good rule of thumb: your blanket should extend 12-16 inches beyond each side of your mattress. Measure your mattress width and add 24-32 inches total to determine the ideal blanket width. For length, add 12-15 inches to cover the foot. Also consider your personal preferences — some people prefer more overhang for a luxurious look, while others like a neater fit. Don't forget to account for mattress depth (standard vs. deep pocket).

While there are generally accepted standard dimensions, blanket sizes can vary by 2-4 inches between manufacturers. Some brands offer "oversized" versions of standard sizes. International sizes also differ — European and Australian blanket dimensions follow different standards. Always check the specific product measurements before purchasing, especially if you have a particular bed frame or duvet cover that requires a precise fit.

A lap blanket (or lapghan) typically measures 35 x 40 inches (89 x 102 cm). It's designed to cover just the lap and legs while sitting, making it ideal for wheelchair users, office chairs, or watching TV on the couch. Lap blankets are smaller than throw blankets and are often handmade (crocheted or knitted). They provide warmth without excess bulk.