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Spherical Earth Cartesian Coordinates

Online spherical earth cartesian coordinates. Spherical coordinates, not WGS84 ellipsoidal ECEF.

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spherical earth cartesian coordinates calculator online

Use spherical earth cartesian coordinates online for latitude deg, longitude deg, radius km. Spherical coordinates, not WGS84 ellipsoidal ECEF. Spherical Earth radius 6371.0088 km unless another radius is displayed. Not an ellipsoidal survey or real-time navigation service.

How to use it

Enter latitude deg. Set longitude deg, radius km. Select Calculate and check the labeled output. Copy or download the JSON result.

Options and example settings

OptionChoices / valueExample default
latitude degMain input. Signed finite values. Maximum 90.41.3
longitude degOption. Signed finite values. 19.8
radius kmOption. Positive values. 6371.0088

Calculation method

x_km = radius_km*cosd(latitude_deg)*cosd(longitude_deg); y_km = radius_km*cosd(latitude_deg)*sind(longitude_deg); z_km = radius_km*sind(latitude_deg) (^ means exponentiation; trig functions ending in d use degrees).

Worked examples

Apply spherical earth cartesian coordinates to the case below, keeping the displayed units and assumptions. Spherical coordinates, not WGS84 ellipsoidal ECEF.

Spherical Earth Cartesian Coordinates — worked case

Settings: longitude deg: 19.8; radius km: 6371.0088

Input:

41.3

Calculated result for these inputs:

Output:

{
  "x_km": 4503.347414945335,
  "y_km": 1621.3048324668293,
  "z_km": 4204.876434593805
}

Choose the right tool

Choose great-circle tools for shortest spherical paths and rhumb tools for constant bearings. Spherical models differ from ellipsoidal survey calculations. Web-map tiles have latitude limits and grid bearings require a stated convergence convention.

Limitations and common mistakes

  • Spherical coordinates, not WGS84 ellipsoidal ECEF. Spherical Earth radius 6371.0088 km unless another radius is displayed. Not an ellipsoidal survey or real-time navigation service.
  • Use the displayed unit in every field. Ratios and percentages are different inputs; percent fields use values such as 25 rather than 0.25.

Frequently asked questions

How can I use spherical earth cartesian coordinates calculator online?

Enter latitude deg. Set longitude deg, radius km. Select Calculate and check the labeled output. Copy or download the JSON result.

Technical references

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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