Math calculator

Slope Calculator

Enter two distinct points to see the direction and equation of the straight line through them.

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No account. Formula and assumptions are shown below.

Calculator inputs

Slope between two points details

Formula & disclaimer

Slope m = (y₂ − y₁) ÷ (x₂ − x₁); Distance = √((x₂ − x₁)² + (y₂ − y₁)²)

View assumptions

Formula reviewCalcs at Hand Editorial TeamVerified 31 August 2026 · automated checks included

Three useful checks, kept deliberately short.

What this result includes

The slope is 2 and the line equation is y = 2x.

A practical example

Points (1, 2) and (5, 10): Calculate rise and run · Divide rise by run · Substitute into y = mx + b.

Common input mistake

A vertical line has undefined slope and is represented as x = constant.

Slope m = (y₂ − y₁) ÷ (x₂ − x₁); Distance = √((x₂ − x₁)² + (y₂ − y₁)²)

A positive slope rises left to right, while a negative slope falls.

Keep in mind: Values are rounded for display; use full precision for downstream calculations.

Produced byCalcs at Hand Editorial Team

Last formula check31 August 2026

Review methodKnown examples + boundary cases