Vector algebra

Dot Product Calculator

Calculate a scalar product and connect it to angle, projection, and work done.

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Formula

A . B = AxBx + AyBy + AzBz

Result

Worked substitution


          

The dot product links components with angle, projection, and work.

Read the result

A positive dot product means the vectors broadly point the same way. A negative value means one has a component opposing the other.

Where it helps

This is the core calculation behind angles between vectors, mechanical work, and projection onto a direction.

Common slip

The dot product is a scalar, not a vector. Do not attach i, j, k components to the final value.

Try it

Use A = (1, 0, 0) and B = (0, 1, 0). The dot product should be 0 because the axes are perpendicular.