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Both calculators run independently — change the inputs on either side to compare results.

Angle Between Vectors Calculator

Compute the angle in degrees between two 2D vectors using cos θ = (v1·v2)/(|v1|·|v2|) and the arccosine function. The result lies in [0°, 180°] regardless of vector orientation.

Vector 1 - X component

Vector 1 - Y component

Vector 2 - X component

Vector 2 - Y component

Fill in the required fields to see your result.

Linear Algebra

Vector Dot Product Calculator

Compute the dot product of two 3D vectors as v1·v2 = v1x·v2x + v1y·v2y + v1z·v2z. Use it to measure projection, test orthogonality, or compute angles via the cosine formula.

Vector 1 - X component

Vector 1 - Y component

Vector 1 - Z component

Vector 2 - X component

V2 Y

V2 Z

Fill in the required fields to see your result.

Key differences

	Angle Between Vectors Calculator	Vector Dot Product Calculator
Category	Linear Algebra	Linear Algebra
Inputs required	4	6
Result	Angle Between Vectors (degrees)	Dot Product
What it does	Compute the angle in degrees between two 2D vectors using cos θ = (v1·v2)/(\|v1\|·\|v2\|) and the arccosine function. The result lies in [0°, 180°] regardless of vector orientation.	Compute the dot product of two 3D vectors as v1·v2 = v1x·v2x + v1y·v2y + v1z·v2z. Use it to measure projection, test orthogonality, or compute angles via the cosine formula.