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US spec converter
Many chairs and desks are listed with US figures, such as a 300 lb load rating or a 48 inch desktop. Type a value to see it in UK units.
In short
1 lb = 0.45359237 kg and 1 inch = 2.54 cm exactly. A foot is 12 inches, so 4 ft = 48 in = 121.9 cm.
Convert
Weight or load rating
300 lb = 136.1 kg
Length, height or width
48 in = 121.9 cm
1 lb = 0.45359237 kg, 1 in = 2.54 cm. Results rounded to one decimal place. Type decimals with a point.
Common load ratings
| Listed | In kg |
|---|---|
| 220 lb | 99.8 kg |
| 250 lb | 113.4 kg |
| 265 lb | 120.2 kg |
| 300 lb | 136.1 kg |
| 330 lb | 149.7 kg |
| 350 lb | 158.8 kg |
| 400 lb | 181.4 kg |
Common desktop and seat sizes
| Listed | In cm |
|---|---|
| 24 in | 61.0 cm |
| 30 in | 76.2 cm |
| 48 in | 121.9 cm |
| 55 in | 139.7 cm |
| 60 in | 152.4 cm |
| 63 in | 160.0 cm |
| 72 in | 182.9 cm |