Enter two points to calculate the slope, angle of incline, and distance between them.
How to Use the Slope Calculator
Two points, four numbers total, are all this needs — slope, incline angle, and distance between the points all come from the same pair.
slope = (y₂ − y₁) ÷ (x₂ − x₁)Rise over run, between any two points. A slope of 2 climbs 2 units of y for every 1 unit of x; slope 0 is dead flat. This Slope Calculator also reports the angle of incline (arctan of the slope — a slope of 1 is exactly 45°) and the straight-line distance between the points, via Pythagoras: √((x₂−x₁)² + (y₂−y₁)²).
Two points sharing an x-coordinate break the formula outright — the denominator hits zero, and the slope is undefined, not just "very large." A vertical line genuinely has no slope; that's different from a steep line, which has a large but perfectly finite one.