📈 Slope Calculator
Calculate slope from two points
Point 1 (x₁, y₁)
Point 2 (x₂, y₂)
How Slope Is Calculated
Formula
m = (y₂ − y₁) / (x₂ − x₁)
- 1Enter the coordinates of two points: (x₁, y₁) and (x₂, y₂).
- 2The tool subtracts the y-values to find the rise.
- 3The tool subtracts the x-values to find the run.
- 4Slope equals rise divided by run.
- 5The result is shown as a fraction, decimal, and percentage grade.
About Slope Calculator
Calculate the slope of a line from two points, or find a missing coordinate. Shows the slope in fraction form, decimal, and as a percentage grade.
Frequently Asked Questions
What does a slope of zero mean?
A slope of zero means the line is perfectly horizontal — there is no rise between the two points. The y-values are the same.
What is an undefined slope?
A slope is undefined when the line is perfectly vertical (x₁ = x₂), because you would be dividing by zero. Vertical lines cannot be expressed as a function.
How is slope related to rate of change?
Slope is the rate of change of y with respect to x. In real-world terms, it tells you how much the output changes for each unit increase in the input, such as speed (distance over time).