The current Kia Niro is 4,420 mm long, 1,825 mm wide and — mm tall, on a 2,720 mm wheelbase. It has grown 7 cm longer since the 2016 Niro.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 2016–2019 | 4,355 | 1,805 | 1,545 | 2,700 | 408 | 10.6 |
| 2019–2022 | 4,365 | 1,805 | 1,558 | 2,700 | 428 | 10.6 |
| 2022–presentCurrent | 4,420 | 1,825 | — | 2,720 | 432 | 10.6 |
| 2026–present | 4,430 | 1,825 | — | 2,720 | 451 | 10.6 |
The Kia Niro offers 845 mm of rear legroom and 950 mm of rear headroom, with 1,135 mm of legroom and 990 mm of headroom up front. Rear shoulder room measures 1,410 mm across.
| Front | Rear | |
|---|---|---|
| Legroom | 1,135 mm | 845 mm |
| Headroom | 990 mm | 950 mm |
| Shoulder room | 1,430 mm | 1,410 mm |
Interior figures are the roomiest measurement (seat fully back), taken as the median across the current generation’s variants; individual trims vary.
Exterior figures are manufacturer specifications for the Niro, 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.