Polygon Interior Angle Calculator
Find one interior angle of a regular polygon in degrees.
Open toolFind the angle between two nonzero 3D vectors in degrees. Cartesian vectors.
Enter the inputs, then select Calculate.
Result will appear here
Find the angle between two nonzero 3D vectors in degrees.
Cartesian vectors. Zero vectors have no defined angle. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
Follow the labelled inputs.
Replace the example with first vector x. The field labels specify the expected format and units.
Set first vector y, first vector z, second vector x, second vector y, second vector z. Cartesian vectors.
Select Calculate. Review the calculated result, then copy it or download the result text.
The starting example produces 90°. Find the angle between two nonzero 3D vectors in degrees.

Read the labels for first vector x and first vector y, first vector z, second vector x, second vector y, second vector z. Cartesian vectors.

Copy the calculated result into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.

Read the units and assumptions with the output.
Check the stated scope before you run it.
Cartesian vectors. Zero vectors have no defined angle. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
The input stays in this browser. Copy result and Download save the same displayed text.

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Open toolAnswers about using Vector Angle Calculator and understanding its results.
Cartesian vectors. Zero vectors have no defined angle. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
Use Copy result to copy the displayed text, or Download to save it as a text file. The tool runs in your browser and does not require an account.
Check the calculated result, then copy or download it.