The current Honda Civic is 4,568 mm long, 1,837 mm wide and — mm tall, on a 2,734 mm wheelbase. It has grown 79 cm longer since the 1979 Civic.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 1979–1983 | 3,783 | 1,580 | 1,335 | 2,273 | 624 | 9.6 |
| 1983–1987 | 3,845 | 1,635 | 1,340 | 2,380 | 188 | 9.2 |
| 1987–1991 | 3,982 | 1,678 | 1,330 | 2,500 | 196 | 9.6 |
| 1991–1996 | 4,080 | 1,695 | 1,345 | 2,570 | 190 | 9.8 |
| 1995–2001 | 4,250 | 1,695 | 1,382 | 2,620 | 299 | 10.0 |
| 1997–2001 | 4,325 | 1,695 | 1,390 | 2,620 | 380 | 10.3 |
| 2001–2005 | 4,203 | 1,695 | 1,463 | 2,623 | 339 | 11.0 |
| 2005–2012 | 4,248 | 1,765 | 1,460 | 2,635 | 485 | 10.7 |
| 2007–2008 | 4,275 | 1,785 | 1,455 | 2,635 | 485 | 11.1 |
| 2012–2015 | 4,300 | 1,770 | — | 2,595 | 477 | 11.9 |
| 2015–2017 | 4,373 | 1,784 | — | 2,595 | 480 | 11.9 |
| 2017–2022 | 4,523 | 1,808 | 1,434 | 2,697 | 461 | 11.0 |
| 2022–presentCurrent | 4,568 | 1,837 | — | 2,734 | 409 | 11.6 |
| 2025–present | 4,560 | 1,802 | — | 2,734 | 408 | 11.6 |
Exterior figures are manufacturer specifications for the Civic, 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.