Rhombus Area Calculator
Calculate area of a rhombus from its two diagonals, plus perimeter from the side length.
About this calculator
The Rhombus Area Calculator on NumberCals is a free, mobile-friendly tool for anyone needing to calculate area of a rhombus from its two diagonals, plus perimeter from the side length. Enter your values in the form below and the result is computed instantly — no sign-up, no installation, no waiting.
Formula used
A = ½·d₁·d₂; P = 4s
What you'll need
- Diagonal 1 (e.g. 12)
- Diagonal 2 (e.g. 8)
What you'll get
- Area
- Side Length
- Perimeter
Formula
A = ½·d₁·d₂; P = 4s
Result
Frequently Asked Questions
Why are the diagonals enough? +
A rhombus's diagonals bisect each other at right angles, so each side is √((d₁/2)² + (d₂/2)²).
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