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Rhumb Line Distance and Bearing Calculator

Online rhumb line distance and bearing calculator. Spherical Earth radius 6371.0088 km unless another radius is displayed. Not an ellipsoidal survey or real-time navigation service.

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  1. 01

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rhumb line distance and bearing calculator online

Use rhumb line distance and bearing calculator online for latitude deg, longitude deg, destination latitude deg, destination longitude deg. 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, destination latitude deg, destination longitude deg. 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
destination latitude degOption. Signed finite values. Maximum 90.45.5
destination longitude degOption. Signed finite values. 9.2

Calculation method

rhumb_line = rhumb(latitude_deg,longitude_deg,destination_latitude_deg,destination_longitude_deg) (^ means exponentiation; trig functions ending in d use degrees).

Worked examples

Apply rhumb line distance and bearing calculator to the case below, keeping the displayed units and assumptions. Spherical Earth radius 6371.0088 km unless another radius is displayed. Not an ellipsoidal survey or real-time navigation service.

Rhumb Line Distance and Bearing Calculator — worked case

Settings: longitude deg: 19.8; destination latitude deg: 45.5; destination longitude deg: 9.2

Input:

41.3

Calculated result for these inputs:

Output:

{
  "rhumb_line": {
    "distance_km": 974.984738946307,
    "bearing_deg": 298.620221048995
  }
}

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 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 rhumb line distance and bearing calculator online?

Enter latitude deg. Set longitude deg, destination latitude deg, destination longitude deg. 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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