Airbus A330-200. KLM have 12 of these aircraft. They seat 243 people.
Airbus A330-300. KLM have 4 of these aircraft plus 1 order. They seat 290 people.
Boeing 737-700. KLM have 18 of these aircraft. They seat 122 people.
Boeing 737-800. KLM have 24 of these aircraft plus 1 order. They seat 164 people.

Boeing 737-800 in Retro Livery.

Boeing 737-900. KLM have 5 of these aircraft. They seat 178 people.
Boeing 747-400. KLM have 7 of these aircraft. They seat between 408 and 415 people.
Boeing 747-400M. KLM have 15 of these aircraft. They seat between 268 and 275 people.
Boeing 777-300ER. KLM have 8 of these aircraft plus 2 orders. They seat 425 people.
McDonnell Douglas MD-11. KLM have 6 of these aircraft. They seat 285 people.
TOTAL: 114 (Passenger) + 4 (Cargo) = 118