WGS84 Geodetic to ECEF Converter
Convert geodetic latitude, longitude and ellipsoidal height to Earth-centered Earth-fixed Cartesian coordinates.
YOUR CALCULATION
Result
—
Calculation steps
Work through one step at a time or reveal the complete calculation. The steps use your current inputs.
How to calculate
Use the WGS84 reference ellipsoid a6378137 m and inverse flattening298.257223563.
N=a/sqrt(1−e²sin²φ); X=(N+h)cosφcosλ; Y=(N+h)cosφsinλ; Z=(N(1−e²)+h)sinφ
Worked example
At latitude0,longitude0,height0 the ECEF coordinates are6378137,0,0 meters.
Assumptions and input details
Geodetic latitude differs from geocentric latitude. Height is relative to the ellipsoid, not mean sea level; no geoid, datum epoch, crustal motion, sensor corrections or surveying accuracy guarantee. Output frame is Earth-fixed, not inertial.
References: NGA: WGS84 parameters
Unit definitions
Unit selection is independent of language. Each selector contains only units for its physical quantity. Calculations use defined base units internally.
Choose from 23 length definitions, including explicitly labelled regional measures. Area conversions square the length factor; geometric volumes cube it.
Regional measures are not interchangeable merely because their names look similar. This is a documented selection, not a claim to include every historical unit.
NIST measurement tables · Japanese traditional units · Mainland China and Hong Kong unit distinctions
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
Convert unsigned latitude/longitude magnitudes and hemispheres into signed decimal degrees, decimal minutes and DMS.
Convert Cartesian, polar, cylindrical and spherical coordinates. Choose degree/radian angles, length units and an explicit inclination or elevation convention.
Calculate the shortest surface distance and initial bearing between two latitude/longitude points on an entered spherical Earth model.
Reserved advertising space.