It depends if it is an orbit around it's axis or an orbit around the sun. Heres the answer for both:
Sun Orbit: 687 Earth Days
Axis Orbit: 687 Earth Days
The funny thing is that their both still the same :)
The asteroid belt orbits the Sun. Phobos and Deimos the moons of Mars orbit Mars.
686.971 Earth days.
It takes Mars 1.9 Earth years to orbit around the Sun.
Phobos doesn't orbit the moon. It orbits Mars.
a year on mars is equivalent to 687 earth days.
It takes 687 days for the planet mars to orbit the sun.
Diemos, the smaller of the two moons of Mars, takes 30.3 hours to make one orbit of Mars.
About another 4 billion years. Then the sun will explode and destroy the solar system, including mars. Until then it will have to orbit the sun. If you mean, "How long does it take for Mars to make a full orbit around the sun" (or something similar to that) , its 687 days
It takes mars 687 days for mars to travel around the sun once
as long as it takes for Justin Bieber to get men
It takes Earth about 365 Earth days to orbit the sun. It takes Mars about 687 Earth days to orbit the sun. This means it takes Mars about 1.88 times longer to orbit the sun than Earth.
Mars takes about 687 Earth days, or 1.88 Earth years, to orbit the Sun once.