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Diagonal length calculator

This calculator finds rectangle diagonal.

LengthCalculatorOnline

Enter values

Diagonal d

Formula

d = √(a² + b²)
L

What this calculator does

This calculator finds rectangle diagonal.

How to use

  1. Enter values in the fields.
  2. Click Calculate.
  3. Check the result below the form.

FAQ

Is the formula real?

Yes, this tool uses a real formula.

Are data sent to the server?

No, calculation runs in the browser.

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