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Vector Magnitude Calculator

Vector magnitude calculator

Find vector magnitude in 2D or 3D coordinate form.

InputsForm4 fieldsLive

Result

13

Uses |v| = sqrt(x^2 + y^2 + z^2).

Live update

Auto

math

Flow
  • Choose 2D or 3D mode.
  • Enter vector components.
  • Read magnitude and reuse value in normalization or direction analysis.
Example

Worked example: v = (3, -4, 12)

  1. 1 Square each component: 9, 16, 144.
  2. 2 Sum squares: 169.
  3. 3 Take square root to get magnitude 13.

Vector magnitude is 13.

How
  1. Choose 2D or 3D mode.
  2. Enter vector components.
  3. Read magnitude and reuse value in normalization or direction analysis.
Avoid
  • Adding raw components without squaring first.
  • Using 2D formula when z component is non-zero.
Checks

Best fit

Vector Magnitude Calculator is built for find vector magnitude in 2d or 3d coordinate form. If Vector Magnitude Calculator does not match the input scope, compare the answer with a second method.

Input check

Match the entered values to this rule before copying the answer: |v| = sqrt(x^2 + y^2) or sqrt(x^2 + y^2 + z^2).

Sanity check

For Vector Magnitude Calculator, use the worked example as a quick benchmark: Vector magnitude is 13. If the vector magnitude calculator answer is far away, check whether an input, unit, or mode changed.

Before copying

Review this common issue first: adding raw components without squaring first.

FAQ
Is this Euclidean norm?

Yes, this tool uses standard L2 Euclidean norm.

Can components be negative?

Yes. Squaring removes sign in magnitude calculation.

Can I use decimals?

Yes. Decimal components are fully supported.

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