Slope Calculator
Find the slope and equation of a line through two points.
Result
Results are estimates for general information only and are not professional advice.
Slope of a line
The slope measures how steep a line is: the change in y divided by the change in x. This calculator finds the slope from two points and gives the line's equation in y = mx + b form.
Frequently Asked Questions
What is the Slope Calculator?
Find the slope and equation of a line through two points. It runs instantly in your browser and is completely free to use.
What do I need to enter to use the Slope Calculator?
The Slope Calculator asks for the following values (4): X₁, Y₁, X₂, Y₂. Fill them in and the result appears immediately — the calculation runs on your own device, so nothing you type is sent to a server.
How accurate is the Slope Calculator?
The Slope Calculator uses standard, widely-accepted formulas, so its figures are reliable estimates for everyday planning. They are not a substitute for advice from a qualified professional.
Is the Slope Calculator free, and do I need an account?
Yes. The Slope Calculator — and every other calculator on Calculatis — is completely free, with no registration, no download and no limit on how often you use it.