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Vector Calculator — Dot, Cross, Magnitude & Angle

Add, subtract, dot, cross, magnitude, unit vector and angle for 2D/3D vectors. Client-side and instant.

Free No signup Client-side Privacy friendly Updated
Vector A (x, y, z)
Vector B (x, y, z)

How to use

  1. 1 Enter the x, y, z components of vectors A and B (use 0 for 2D).
  2. 2 All results update instantly.
  3. 3 Cross product and angle assume 3D vectors.

Why use this tool

  • Dot product, cross product, magnitude, unit vector and the angle between.
  • Works for 2D and 3D vectors.
  • Runs entirely in your browser.

Frequently asked questions

What is the dot product?

A·B = aₓbₓ + a_yb_y + a_zb_z. It is zero when the vectors are perpendicular.

What is the cross product?

A×B is a vector perpendicular to both A and B (3D only); its magnitude equals |A||B|sin θ.

How is the angle between vectors found?

From cos θ = (A·B) / (|A||B|); the result is shown in degrees.

What is a unit vector?

A vector of length 1 in the same direction — each component divided by the magnitude.

What is Vector Calculator?

A vector calculator performs operations on 2D and 3D vectors — addition, subtraction, dot and cross products, magnitude, unit vector and the angle between them.

Summary

Vector Calculator is a free math utility by Zerethon Tools. Add, subtract, dot, cross, magnitude, unit vector and angle for 2D/3D vectors. Client-side and instant. Runs entirely in the browser — no signup, no upload.

Category
Math
Pricing
Free
Privacy
Browser-based
Signup
Not required

Privacy

Your data never leaves your browser unless explicitly stated. Vector Calculator runs entirely client-side — no server upload, no logging, no tracking of your input.

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