Chart angle
Midheaven calculator for your MC sign and degree
Calculate the Medium Coeli (MC) from the exact birth moment and location, with the chart method shown beside the result.
Find your Midheaven (MC)
Calculate the tropical Midheaven sign and exact degree from precise birth time and location.
Calculator input: The MC is time-sensitive, so an exact birth time and correctly selected birthplace are required.
Result preview: The result shows the tropical MC sign, exact degree and chart house-system method.
This interactive calculator runs in the browser after the page loads. Inputs are calculated for the request and are not saved by the public preview.
Why the Midheaven needs an exact birth time
The Midheaven is a chart angle tied to Earth rotation and the local meridian, so it moves much faster through zodiac degrees than the outer planets.
A reliable birth time and correctly resolved birthplace are therefore essential for an accurate MC sign and degree.
Midheaven and the tenth house are related but not identical
In quadrant house systems the Midheaven commonly forms the tenth-house cusp. In other house systems, such as Whole Sign, the MC can fall in a different house.
ReadAstrology reports the calculated MC angle and names the house system used by the chart engine.
Frequently asked questions
What does MC mean in astrology?
MC stands for Medium Coeli, or Midheaven, the zodiac degree where the ecliptic crosses the local meridian at the birth moment.
Can I calculate the Midheaven without a birth time?
A reliable Midheaven requires an exact or very close birth time plus birthplace because the angle changes quickly.