

Sextiles and trines nearly all the way down, with Mars the one crossed wire.
Easy on paper
Middle of the range for contact across 93 pairs charted (29–86, median 41).
John Mayer and Taylor Swift compatibility
↓ Below: all 6 aspects named, with orbs
Sources conflict on the birth time. No recorded verification, so houses and the rising sign are not shown.
Note on this rating: Birth time 05:26, Rodden DD (conflicting or unverified sources) via astrotheme.com (John_Mayer). Treat houses and angles as unavailable; read planets and aspects only.
This page compares Sun, Mercury, Venus and Mars, the four placements a birth date alone can place. Moon, Ascendant and Midheaven are left out here by design, not by omission, so nothing on this page is scored against a birth time it cannot trust.
Cross-aspects
Where the two charts actually touch
and 1 more, to 6.63°
Category shape
Five categories, one chart each
Attraction
VENUS × MARS
live spark, from John Mayer's Mars opposition Taylor Swift's Venus
67
Friction
MARS × MARS
friction point, from John Mayer's Mars trine Taylor Swift's Mars
50
Identity
SUN × SUN
core identity dynamic, from John Mayer's Sun sextile Taylor Swift's Sun
46
Values
VENUS × VENUS
shared values, from John Mayer's Venus trine Taylor Swift's Venus
42
Communication
MERCURY × MERCURY
No aspect inside orb. This engine finds no direct communication channel between them.
None
Scores rank how close a contact is to exact, not how well two people get along. A high friction score means the two Mars are in tight aspect, which is information, not a warning.
The overlap
Two charts, laid over each other
John Mayer and Taylor Swift's Sun, Mercury, Venus and Mars are drawn here, the four placements a birth date alone can place with no birth time required. This is a complete chart of what is known, not a partial chart of what is not.
| Thin line, Mercury to Sun | SEXTILE 0.44° |
| Thin line, Sun to Sun | SEXTILE 1.38° |
| House ring, not drawn | |
Why they click
This is the smoothest aspect list of the set. Sun sextile Sun at 1.38 degrees, Mercury sextile Sun at 0.44, Venus trine Venus, Venus sextile Mars, Mars trine Mars at 1.5. Five of the six contacts are soft angles, and several are tight. Attraction scores highest of the five categories, with Venus trine Venus and Venus sextile Mars both feeding it. On this scale that reads as a pairing where liking each other required very little effort from either side.
Why they clash
Mars opposite Venus is the one hard contact, and at 6.63 degrees it is the widest aspect on the board, so it carries less weight than the tight sextiles around it. Friction still lands mid-scale, which suggests the drive of one meeting the affection of the other is where whatever tension exists collects. Communication sits at the floor with no Mercury-to-Mercury contact at all. Easy chemistry, and no particular channel for talking about it.
What each system says
Twelve systems, two people
The Suns are 58.6° apart, close enough to feed the identity category above.
Snake and Snake are in neither the trines nor the clashes.
Frequently asked
Are John Mayer and Taylor Swift astrologically compatible?
Their charts make 6 cross-aspects, the tightest at 0.44° and 1.38°. Astrology does not score a relationship out of a hundred, and the number on this page counts how much contact two charts make, not how well two people do.
Why isn't there a house ring on the chart above?
At least one of John Mayer and Taylor Swift doesn't have a curated, non-estimated birth time, so a house placement would be a guess. This page only shows what a birth date alone can place.
What does sextile mean between two charts?
A sextile puts two placements in a supportive relation that usually needs some initiative to activate. John Mayer and Taylor Swift have 3 sextile contacts between them, more than any other type.
Tight contact, mixed valence
Run the full synastry
This page compares Sun, Mercury, Venus and Mars, because those are the four that a birth date alone can place. The synastry calculator runs all ten bodies against each other.