How it works
Calculate area and perimeter from the perpendicular diagonals of a rhombus, whose four sides have equal length.
A = d₁d₂/2; P = 2√(d₁²+d₂²)
Worked example
Show example inputs and result
First diagonal: 8 · Second diagonal: 6.
- Area
- 24
- Perimeter
- 20
Questions and answers
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Method reviewed: October 8, 2026 · Methods & accuracy