Artificial Gravity Calculator

Calculate rotation rate, gravity gradient, and comfort rating for centripetal artificial gravity systems.

Target gravity (g)

Rotation radius (m)

Crew height (m)

Tab to move between fields

Rotation rate (RPM)

2.61

Floor velocity (m/s)13.65

Gravity gradient (%)3.6%

Comfort rating (0-3)2

Coriolis severity2.6

Radius for 2 RPM (m)85

How to Use This Calculator

Enter the habitat rotation rate in RPM.
Input the radius of the rotating habitat in meters from the axis of rotation.
Review the calculated artificial gravity level in fractions of Earth g at that radius.
Adjust RPM or radius to hit your target g-level (0.3-1.0 g is the typical design range).
Check the Coriolis effect intensity — rates above 2-3 RPM are uncomfortable for most occupants.

How the result changes with Target gravity (g)

Target gravity (g): Desired gravity (Mars = 0.38g, Moon = 0.17g, Earth = 1.0g).
Rotation radius (m): Distance from center to floor.
Crew height (m): Average crew height for gradient calculation.

Rotation rate (RPM): Revolutions per minute needed.
Floor velocity (m/s): Tangential speed at the floor.
Gravity gradient (%): Gravity difference head-to-feet (< 10% ideal).
Comfort rating (0-3): 0 = Intolerable, 1 = Challenging, 2 = Tolerable, 3 = Comfortable.
Coriolis severity: Higher = stronger Coriolis effects on movement.
Radius for 2 RPM (m): Minimum radius to achieve target-g at 2 RPM comfort.

Identify Input Parameters
Target gravity (g) = 0.38, Rotation radius (m) = 50, Crew height (m) = 1.8 = 3 input(s) provided
Calculate Rotation rate
Rotation rate = round(omega * 60 / (2 * π) * 100) / 100
2.61 = 2.61
Calculate Floor velocity
Floor velocity = round(omega * radiusMeters * 100) / 100
13.65 = 13.65
Calculate Gravity gradient
Gravity gradient
3.6 = 3.6%