Spec Sizes

Kia Optima vs Nissan Altima Dimensions & Size Comparison

Comparing 2005 catalog dimensions. Kia Optima · Nissan Altima

Same scale for both vehicles. Generic silhouette — proportional to measured length, height, width, wheelbase, and clearance.

Side view
  • Length185.8 in
  • Height55.5 in
  • Wheelbase106.3 in
  • Curb weight3,279 lb – 3,301 lb
Front / width
  • Width71.5 in
  • Nissan Altima width70.4 in

Which is bigger?

  • Length: Kia Optima is 6.6 in shorter (185.8 in vs 192.4 in)
  • Width: Nissan Altima is 1.1 in narrower (71.5 in vs 70.4 in)
  • Height: Nissan Altima is 2.1 in taller (55.5 in vs 57.6 in)
  • Wheelbase: Nissan Altima has a 3.9 in longer wheelbase (106.3 in vs 110.2 in)
  • Curb weight: Kia Optima is 142 lb heavier (3,290 lb vs 3,149 lb)

Biggest size differences

  1. Curb weight: Kia Optima is 142 lb heavier (3,290 lb vs 3,149 lb)
  2. Height: Nissan Altima is 2.1 in taller (55.5 in vs 57.6 in)
  3. Wheelbase: Nissan Altima has a 3.9 in longer wheelbase (106.3 in vs 110.2 in)
  4. Length: Kia Optima is 6.6 in shorter (185.8 in vs 192.4 in)
  5. Width: Nissan Altima is 1.1 in narrower (71.5 in vs 70.4 in)

Practical verdicts

  • Easier to fit in a short garageKia Optima — Kia Optima is shorter by 6.6 in Check garage fit for Kia Optima · garage fit for Nissan Altima
  • Narrower for tight parkingNissan Altima — Nissan Altima is narrower by 1.1 in
  • Smaller exterior footprintKia Optima — Based on length × width (Kia Optima)

Dimension comparison

SpecKia OptimaNissan AltimaDifference
Length185.8 in192.4 in6.6 in
Width71.5 in70.4 in1.1 in
Height55.5 in57.6 in2.1 in
Wheelbase106.3 in110.2 in3.9 in
Curb weight3,290 lb3,149 lb142 lb

Values use trim midpoints when a model year lists a range.

Compare by year

Overlapping model years with dimension data.

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