Citadel Station: Statistics

Mass Effect & Mass Effect 2
Although the Citadel is equipped with mass-effect-generating element-zero cores, most of the gravity on the station is generated by the centrifugal force of rotation.


 * Rotation: 3.5 minutes per revolution
 * Rotational Gravity in Wards: 1.02 Earth
 * Rotational Gravity in Presidium: 0.3 Earth
 * Total Length (Open): 44.7 km
 * Diameter (Open): 12.8 km
 * Ward Length: 43.6 km
 * Ward Width: 330 m
 * Presidium Ring Diameter: 7.2 km
 * Presidium Ring Width: 553 m
 * Exterior Armor Thickness: 13m
 * Population: 13.2 million (not including keepers)
 * Gross Weight: 7.11 billion metric tons
 * Height of the Presidium Tower: 1047 m