Slope Calculator
Calculate the slope, angle, and equation of a line from two points or from one point and slope
Calculate the slope, angle, and equation of a line from two points or from a point and slope.
About Slope
Formula
m = (y₂ - y₁) / (x₂ - x₁) = tan(θ)
Slope Types:
- • Positive: Line rises left to right
- • Negative: Line falls left to right
- • Zero: Horizontal line
- • Undefined: Vertical line
Common Angles:
0° = 0
30° ≈ 0.577
45° = 1
60° ≈ 1.732
Applications:
- • Road and ramp gradients
- • Roof pitch calculations
- • Linear function analysis
- • Rate of change problems