Vector Addition Calculator

Published on: February 1, 2026

This Vector Addition Calculator helps you add two 3D vectors by combining their corresponding components. Add the x-components, y-components, and z-components separately, then write the results together as a new vector. This follows the vector addition rule used in coordinate geometry and vector algebra. It is a simple way to check answers, understand the method clearly, and practise vector operations step by step.

Step-by-step method

  1. Identify the components of A and B.
  2. Write the component-wise addition rule.
  3. Substitute the components into the rule.
  4. Add corresponding components to get the result.

Formula:

A+B=( a1+b1, a2+b2, a3+b3 )

Example 1: (1,2,3),(4,5,6)

Step 1 - Identify the components.

In this problem: List the components of both vectors.

a1=1, a2=2, a3=3
b1=4, b2=5, b3=6

Step 2 - Write the rule.

In this problem: Add corresponding components.

A+B=( a1+b1, a2+b2, a3+b3 )

Step 3 - Substitute the components.

In this problem: Place your values into the rule.

A+B=( 1+4, 2+5, 3+6 )

Step 4 - Add and simplify.

In this problem: Compute each component sum.

A+B=( 5, 7, 9 )

Final answer: A + B = ( 5, 7, 9 )

Example 2: (1/2,0,0),(5/2,0,0)

Step 1 - Identify the components.

In this problem: List the components of both vectors.

a1=
1
2
, a2=0, a3=0
b1=
5
2
, b2=0, b3=0

Step 2 - Write the rule.

In this problem: Add corresponding components.

A+B=( a1+b1, a2+b2, a3+b3 )

Step 3 - Substitute the components.

In this problem: Place your values into the rule.

A+B=(
1
2
+
5
2
, 0+0, 0+0 )

Step 4 - Add and simplify.

In this problem: Compute each component sum.

A+B=( 3, 0, 0 )

Final answer: A + B = ( 3, 0, 0 )