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sci.geodetic-to-cartesian-WGS84 Calculator
Converts geodetic (lat, lon, h) to ECEF Cartesian (X, Y, Z) using WGS84 ellipsoid parameters: X = (N+h)cos φ cos λ, Y = (N+h)cos φ sin λ, Z = (N(1−e²)+h)sin φ. WGS84 semi-major axis a = 6,378,137 m, eccentricity e² = 0.00669438 — used in GPS, GIS, and satellite orbit calculations.
Inputs
Lat Deg
Reference formula or conversion factor shown for context.
Lon Deg
Reference formula or conversion factor shown for context.
H M
Vertical measurement. For health calculators, typically standing height without shoes.
Results
ECEF X (m)
Reference formula or conversion factor shown for context.
ECEF Y (m)
Reference formula or conversion factor shown for context.
ECEF Z (m)
Reference formula or conversion factor shown for context.
prime vertical radius N (m)
The computed radius -- half the diameter.
WGS84: a=6378137m, f=1/298.257223563, e²=2f−f²
Reference formula or conversion factor shown for context.