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Vector Magnitude and Unit Vector

Find vector length and the normalized direction of a nonzero vector.

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Your numbers

Local calculations. Results are estimates, not professional advice.

Magnitude

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Use consistent units. The result follows the assumptions you enter.

Formula

Use M = √(x²+y²+z²) and u = (x/M,y/M,z/M). x, y and z are vector components, M is magnitude, and u is the unit direction. The vector must be nonzero.

Find vector length and the normalized direction of a nonzero vector.

Worked example

x component
3
y component
4
z component
0
Magnitude
5
Unit vector x
0.6
Unit vector y
0.8
Unit vector z
0

Scope and limitations

Use consistent units. The result follows the assumptions you enter.

Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.

Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.

Formula version: edc30398897a · Example checked:

Methodology

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