How long does Mars take to go through the zodiac?

About 1.9 years (687 days) for one full circuit as seen from Earth. That is the synodic figure this site computes ephemeris positions against, not a sidereal orbital period, and it is what determines how long Mars stays in one sign: roughly one twelfth of the cycle, stretched or compressed by retrograde motion and by the eccentricity of the orbit.

Which signs does Mars rule?

Mars rules Aries and Scorpio. It is exalted in Capricorn. It is in fall in Cancer. It is in detriment in Libra and Taurus. Rulership is a fixed correspondence, so it holds in every chart; what changes chart to chart is whether Mars actually occupies one of those signs.

Is Mars a personal planet?

Mars is classified here as a personal. Personal planets move fast enough to differ between people born the same month, which is what makes them readable at the individual level.

How often is Mars retrograde?

Mars turns retrograde roughly every 780 days. Retrograde motion is apparent, not real: the planet keeps moving forward, but seen from a moving Earth its longitude decreases for a stretch. Because the effect depends on the geometry between two orbits, the interval and the duration both vary between cycles, so a stated average will not match any single retrograde exactly. Live station dates are computed rather than tabulated on this site.

Mars

personal · cycle 687 days · retrograde every 780 days

Dignities

Rules: ♈ Aries
♏ Scorpio
Exaltation: ♑ Capricorn
Fall: ♋ Cancer
Detriment: ♎ Libra
♉ Taurus

Hellenistic tradition

Mars rules Aries (diurnal) and Scorpio (nocturnal). Exalted in Capricorn, fall in Cancer.

Modern Western reading

Modern Western astrology reads Mars as initiating force, will, and effort.

Questions

How long does Mars take to go through the zodiac?: About 1.9 years (687 days) for one full circuit as seen from Earth. That is the synodic figure this site computes ephemeris positions against, not a sidereal orbital period, and it is what determines how long Mars stays in one sign: roughly one twelfth of the cycle, stretched or compressed by retrograde motion and by the eccentricity of the orbit.
Which signs does Mars rule?: Mars rules Aries and Scorpio. It is exalted in Capricorn. It is in fall in Cancer. It is in detriment in Libra and Taurus. Rulership is a fixed correspondence, so it holds in every chart; what changes chart to chart is whether Mars actually occupies one of those signs.
Is Mars a personal planet?: Mars is classified here as a personal. Personal planets move fast enough to differ between people born the same month, which is what makes them readable at the individual level.
How often is Mars retrograde?: Mars turns retrograde roughly every 780 days. Retrograde motion is apparent, not real: the planet keeps moving forward, but seen from a moving Earth its longitude decreases for a stretch. Because the effect depends on the geometry between two orbits, the interval and the duration both vary between cycles, so a stated average will not match any single retrograde exactly. Live station dates are computed rather than tabulated on this site.

Reference, not advice

This is cultural and astronomical reference, not personal prediction or advice.

Cycle periods are mean orbital values. Traditional interpretations paraphrased from primary classical and modern sources. See sources.

Sources

Last reviewed 2026-05-28.