🪑 Lumbar Pillow Size for Chair Calculator
Match square, lumbar, bolster, or round pillows to seat width, depth, and arm clearance
| Chair style | Typical width | Best shape | Fit note |
|---|---|---|---|
| Barrel chair | 20-24 in | 16-18 sq | Soft curve |
| Wingback chair | 22-28 in | 12x20 | Tucks in |
| Slipper chair | 24-30 in | 18-20 sq | Wide seat |
| Club chair | 22-26 in | 14x24 | Deep sit |
| Standard size | Metric size | Best use | Fit note |
|---|---|---|---|
| 14 sq | 36 cm | Petite | Small chairs |
| 18 sq | 46 cm | Balanced | Most chairs |
| 20 sq | 51 cm | Lounge | Bigger seats |
| 12x20 | 30x51 | Lumbar | Narrow backs |
| Cover size | Insert size | Look | Note |
|---|---|---|---|
| 14 sq | 16 sq | Neat | Low loft |
| 18 sq | 20 sq | Full | Easy fill |
| 12x20 | 14x21 | Plush | Soft edge |
| 14x24 | 16x25 | Crisp | Taller back |
| Pillows | Span | Best use | Note |
|---|---|---|---|
| 1 | 55-70% | Center | Simple |
| 2 | 65-85% | Wider | Layered |
| 3 | 80-95% | Lounge | Plush |
| Pair | 2 x 16 | Balanced | Seat-based |
Lumbar pillows are named for their ability to give support to the lower back when you sit upright in a chair or sofa. They have a short rectangle shape and look like a tiny body pillow. Although there are various sizes the most common is around 12×19 or 12×20 inches.
Standard sizes for lumbar pillows are 12×20, 12×24 or 12×36 inches. Another common size is 14×22 inches. Other favorite options are 18 wide x 10 high or 20 wide x 12 high.
How to Pick the Right Size Lumbar Pillow
For big furniture like daybeds, a bigger pillow can work well. In centimeters a standard lumbar pillow is about 30 x 60 cm.
Typical width of lumbar pillows ranges between 14 and 22 inches, which ensures good coverage for different furniture peices. Good sizes include 13×21, 13×23, 13×25, 15×21, 15×23 and 15×25. Also 13×19 happens commonly.
Lumbar pillows usually have 20x12x4 inches. That tiny size helps you use them easily on chairs and sofas. On a sofa one or two such pillows combine well with average throw pillows.
When you choose throw pillows, consider the size of the furniture. For a 3-seat sofa 20×20-inch pillows work best, with pairs of 18×18-inch or lumbar pillows added. Style it by laying a 22-24-inch pillow in the corner, then add a lumbar.
To find the right height of a lumbar pillow, divide the height of the chair by two and add 3 inches. So if the seat height is 18 inches, the ideal pillow height reaches around 12 inches.
Bed styling is a bit different. For king beds 18×40-inch lumbar pillows work well. For queen beds a bit smaller 16×36 work better.
For full and twin beds a square accent pillow or standard lumbar does the job. Twin beds are 38 inches wide, and adding a Euro pillow with a lumbar or small accent pillow gives small beds a much fuller look.
Lumbar pillows are popular because of their unusual form. Because most pillows are squares, the rectangle gives a visual difference and leads the eye through the room when you lay them well. Euro pillows of 26×26 inches work for lumbar support as well as for neck and head support.
Custom lumbar pillows are possible by choosing exact sizes, styles and fabrics. The IKEA BORTBERG lumbar cushion measures 31×23 cm in black, and the Kuddviva comes in 16×26 size with feather fill.
A lumbar pillow too deep, for instance around 10 cm, could push the spine too far forward. Something a bit smaller would give better comfortfor comfort.
