Orbital Period Calculator

T = 2π × √(a³ / GM) — calculate orbital period or semi-major axis.

EarthMars← orbit
Orbital Period
1.5427 h (92.561 min)
Seconds5553.7 s
Minutes92.561 min
Hours1.5427 h
Days0.064278 d
Years0.00017598 yr

Common orbits: