Vector Angle Calculator

Angle between two vectors

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About Vector Angle Calculator

A vector angle calculator that finds the angle between two vectors using the dot product formula: cos(θ) = (A·B)/(|A||B|). Supports 2D and 3D vectors. Shows cosine similarity, determines if vectors are parallel, perpendicular, or acute/obtuse. All calculations are client-side. Essential for physics, computer graphics, machine learning, and geometry.

Vector Angle Calculator Features

  • 2D/3D
  • Angle (deg/rad)
  • Cosine similarity
  • Relationship
  • Dot product

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