Vector Norm Calculator

Compute L1 (Manhattan), L2 (Euclidean), L-infinity, or Lp norms for 2D and 3D vectors.

Dimension

Norm type

L2 (Euclidean) norm

5

Norm value
5
Norm type
L2 (Euclidean)
Dimension
2D

Calculation steps

Square each component: [9, 16]

Sum of squares: 25

Square root: √25 = 5

Also in Linear Algebra

Linear Algebra

Vector norm calculator: compute L1, L2, L-infinity, and Lp norms

A vector norm calculator measures the size of a vector using different metrics. The L2 (Euclidean) norm gives the standard length, L1 (Manhattan) sums absolute values, and L-infinity takes the maximum absolute component.

Common vector norms

L1 norm: ||v||₁ = |v₁| + |v₂| + ... (Manhattan distance). L2 norm: ||v||₂ = √(v₁² + v₂² + ...) (Euclidean distance). L∞ norm: ||v||∞ = max(|v₁|, |v₂|, ...) (Chebyshev distance).

The general Lp norm is (Σ|vᵢ|^p)^(1/p). L1 and L2 are special cases with p=1 and p=2.

Frequently asked questions

Which norm should I use?

L2 is the most common for measuring distance. L1 is used in optimization (LASSO regression). L-infinity is used when you care about the worst-case component.

Can a norm be negative?

No — all norms are non-negative by definition. A norm of zero means the vector is the zero vector.

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