Enter precise birth details
Your date, time, and city establish the UTC moment used for the calculation. Exact time matters most near gate and line boundaries.
Astronomical charting, made clear
Your birth data, translated into a Human Design chart.
Enter your birth date, exact time, and city to calculate your Personality and Design activations, Type, Authority, Profile, Definition, and current transits.
Swiss EphemerisPlanetary longitude calculations
Two calculation momentsBirth and 88-degree prenatal design
Interactive transitsExplore planetary changes over time
How it works
From a moment in time to a readable chart.
The calculator combines time-zone conversion, astronomical positions, the 64-gate wheel, and channel logic in one reproducible process.
Calculate planetary positions
We calculate 13 activations at birth and again when the Sun was approximately 88 degrees before its birth position.
Map your chart mechanics
Planetary longitudes map to gates and lines, then complete channels define centers and determine chart properties.
Inside your chart
The essentials, without the visual noise.
Start with the practical mechanics, then explore deeper layers only when they are useful to you.
Type & Strategy
A high-level view of how your defined centers connect and how your chart is categorized.
Inner Authority
The chart's hierarchy for emotional, sacral, splenic, projected, or lunar decision processes.
Profile & Definition
Your conscious and unconscious Sun lines, plus the connected components in your definition.
Transit Overlay
See which current planetary gates reinforce your chart or complete previously open channels.
Clear context
Precise mathematics. Interpretive framework.
The astronomical calculation is deterministic: the same verified birth moment produces the same planetary positions and gate activations. Human Design's personality interpretations are an esoteric framework and have not been scientifically validated.
Use your chart for reflection and experimentation, not as medical, legal, financial, or psychological advice.