The current Lexus LS is 5,235 mm long, 1,900 mm wide and 1,454 mm tall, on a 3,125 mm wheelbase. It has grown 23 cm longer since the 1990 LS.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 1990–1995 | 5,005 | 1,830 | 1,440 | 2,815 | 430 | 11.0 |
| 1995–2000 | 5,005 | 1,830 | 1,440 | 2,850 | 463 | 10.6 |
| 2000–2003 | 5,005 | 1,830 | 1,470 | 2,925 | 552 | 10.4 |
| 2003–2006 | 5,025 | 1,830 | 1,470 | 2,925 | 573 | 10.4 |
| 2006–2010 | 5,054 | 1,875 | 1,471 | 2,994 | 438 | 10.8 |
| 2010–2013 | 5,120 | 1,875 | 1,480 | 3,030 | 420 | 11.6 |
| 2013–2018 | 5,130 | 1,875 | 1,478 | 3,010 | 420 | 11.4 |
| 2018–2025Current | 5,235 | 1,900 | 1,454 | 3,125 | 447 | 10.5 |
Exterior figures are manufacturer specifications for the LS, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.