Horizontal Distance from Slope Distance Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
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Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the slope distance and the vertical angle from horizontal.
- Press Calculate.
- Read the horizontal distance.
How it works
Horizontal distance = slope distance × cos(vertical angle). The vertical component is slope × sin(angle).
Worked example
100 m at 5°. Horizontal ≈ 99.6 m.
Frequently asked questions
Why reduce slope to horizontal?
Plans and grids use horizontal distance; a tape or EDM measures along the slope, which is longer.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.