Furniture Measurement Converter
Free tool · No signup · Instant. Convert centimetres, inches and feet+inches as you type — plus a quick reference of standard UK furniture sizes.
Standard UK furniture sizes
The sizes UK retailers actually use — centimetres are exact, imperial is the commonly quoted equivalent.
| Item | Centimetres | Feet / inches (approx) |
|---|---|---|
| Single bed | 90 × 190 cm | 3'0" × 6'3" |
| Double bed | 135 × 190 cm | 4'6" × 6'3" |
| King size bed | 150 × 200 cm | 5'0" × 6'6" |
| Super king bed | 180 × 200 cm | 6'0" × 6'6" |
| Standard UK internal doorway | 76 cm | 2'6" |
| Typical 2-seater sofa width | 150–170 cm | 4'11"–5'7" |
| Typical 3-seater sofa width | 190–220 cm | 6'3"–7'3" |
| Dining chair seat height | 45 cm | 1'6" |
Tool FAQs
How do I convert cm to inches?
Divide centimetres by 2.54. So a 190 cm bed length is 190 ÷ 2.54 = 74.8 inches. To go the other way, multiply inches by 2.54.
Why does UK furniture use both cm and feet/inches?
The UK went metric for manufacturing but imperial sizes stuck around in everyday speech. Retailers list metric dimensions (often with the traditional imperial name like "4'6" double") so shoppers from both habits can compare.
What is the standard UK double bed size?
A UK double bed (and the mattress to fit it) is 135 × 190 cm, traditionally called 4'6" × 6'3". Always check the retailer's exact centimetre dimensions before ordering bedding.
Measuring up for something specific? Try our Sofa Size Finder, Bed Size Finder or Dining Size Finder.