Slope Calculator
Calculate the slope (steepness) of the line through two points.
Calculate
Enter your values below.
Result
Slope (m)
0
Formula used
m = (y₂ − y₁) ÷ (x₂ − x₁)
Example: (1,2) to (4,8) → slope = 2.
How to use this calculator
- Enter x₁, y₁, x₂, y₂.
- Press Calculate to see your result instantly.
FAQ
Frequently asked questions
What does slope mean?
It measures how steep a line is — the change in y for each unit change in x.
What if x₁ equals x₂?
The line is vertical, and the slope is undefined (shown as such).
What does a slope of 0 mean?
The line is perfectly horizontal — y doesn't change as x changes.
What does a negative slope mean?
The line goes downward from left to right.