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Both calculators run independently — change the inputs on either side to compare results.

Vector Projection Calculator

Calculate the scalar projection of 2D vector A onto vector B. Use this when you need to find how much of vector A lies in the direction of vector B.

Vector A - X component

Vector A - Y component

Vector B - X component

Vector B - Y component

Fill in the required fields to see your result.

Linear Algebra

Vector Magnitude Calculator

Compute the Euclidean magnitude (length) of a 3D vector as √(x² + y² + z²). Use it to normalise a vector, measure distance, or check the size of a direction vector.

X component

Y component

Z component

Fill in the required fields to see your result.

Key differences

	Vector Projection Calculator	Vector Magnitude Calculator
Category	Linear Algebra	Linear Algebra
Inputs required	4	3
Result	Scalar Projection	Vector Magnitude
What it does	Calculate the scalar projection of 2D vector A onto vector B. Use this when you need to find how much of vector A lies in the direction of vector B.	Compute the Euclidean magnitude (length) of a 3D vector as √(x² + y² + z²). Use it to normalise a vector, measure distance, or check the size of a direction vector.