Quickly compute the area and perimeter of any rhombus with clear steps.
Perimeter (P)
Total Area (A)
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Step 01
Determine the length of any side (a) of the rhombus.
Step 02
Input the perpendicular height (h) to calculate the total surface area.
Step 03
The calculator instantly evaluates the area in square units and perimeter in linear units.
Step 04
Click the details button to review the exact mathematical formulas and breakdown.
| Calculation | Formula | Description |
|---|---|---|
| Area (A) | A = a · h | Multiplying the side length by its straight perpendicular height. |
| Perimeter (P) | P = 4 · a | Summing all four equal outer boundaries. |
Never use the side length as the height for area calculations. The height must always drop straight down at a 90-degree angle from the base.
Because all four sides of a rhombus are identical, finding the perimeter is as simple as multiplying one side length by four ($P = 4a$).
Always double-check that your inputs share the exact same measurement units (e.g., both in centimeters or both in meters) before calculating.
Legal Disclaimer:The calculation tools provided on this website are intended solely as an educational reference guide for planning and study purposes. No absolute liability is assumed for completeness or absolute precision.
A rhombus is a four-sided quadrilateral where all four sides have equal length, and opposite sides are parallel. It can be thought of as a tilted square or an equilateral parallelogram.
The area can be found by multiplying the side length (a) by the perpendicular height (h), or by taking half the product of its two diagonals.
By definition, a rhombus requires all four sides to be congruent. This distinguishes it from a generic parallelogram or rectangle.
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