Coordinate Difference Calculator
Computes easting, northing and level differences between two points plus horizontal and slope distance.
Enter Values
Before you rely on this: First-pass guide only. Verify safety-critical or regulated work against the relevant standards, your project requirements and a qualified professional.
How to use this calculator
- Enter the easting, northing and RL of both points.
- Press Calculate.
- Read ΔE, ΔN, ΔRL and the horizontal/slope distance.
How it works
Returns the differences between two 3D coordinates plus the horizontal distance √(ΔE² + ΔN²) and the slope distance including height.
Worked example
Two survey marks. Shows how far apart they are horizontally and in 3D.
Frequently asked questions
What's the difference between horizontal and slope distance?
Horizontal distance ignores the height difference; slope distance is the straight 3D line including it.
Related tools
- Coordinates to Bearing & Distance Calculator
- RL Difference Calculator
- Coordinate Offset Calculator
- Slope & Horizontal Distance Calculator
- Bearing & Distance to Coordinates Calculator
- Easting/Northing Distance Calculator
Explore more in Surveying, Coordinates, GIS & CAD.
Cite this tool
Zerdly. (2026). Coordinate Difference Calculator. Retrieved from https://www.zerdly.com/tools/coordinate-difference-calculator/
Tip: Enter any known values to calculate the remaining results.
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