Rhombus Area Formula
The area of a rhombus is calculated using its two diagonals:
Area = (Diagonal 1 × Diagonal 2) ÷ 2
Both diagonals must be measured in the same length unit before applying the formula.
How to Calculate Rhombus Area
- Measure the first diagonal.
- Measure the second diagonal.
- Make sure both measurements use the same unit.
- Multiply the two diagonals.
- Divide the result by 2.
Example Calculation
Suppose a rhombus has a first diagonal of 20 metres and a second diagonal of 10 metres.
Area = (20 × 10) ÷ 2
Area = 100 m²
Using a Rhombus for Land or Plot Measurement
A rhombus-shaped plot can be calculated when its two diagonals are known. This can be useful for simple geometric land measurements where the boundary is actually rhombus-shaped.
For irregular land boundaries, use a suitable land surveying method or a calculator designed for the actual plot shape instead of assuming the property is a rhombus.
Common Mistakes
- Using the side length instead of a diagonal.
- Measuring the two diagonals in different units.
- Forgetting to divide the product by 2.
- Assuming an irregular plot is a rhombus without checking its geometry.
When Not to Use This Calculator
Do not use the rhombus formula when the plot does not have a rhombus-shaped boundary or when the two diagonals cannot be reliably measured.
For rectangular plots, use the Rectangle Area Calculator. For triangular plots, use the Triangle Area Calculator.
Frequently Asked Questions
What is the formula for the area of a rhombus?
The formula is (Diagonal 1 × Diagonal 2) ÷ 2.
Can I enter diagonals in feet?
Yes. Enter both diagonals in feet and select the required output area unit.
Can this calculate a rhombus-shaped land plot?
Yes, provided the plot is actually a rhombus and both diagonals can be measured accurately.
Does the calculator support square feet?
Yes. You can convert the calculated area to square feet, square metres, square yards, and other supported square units.
Land Measurement Note
Geometric area is different from local land-revenue units such as Bigha, Biswa, Katha, or local regional units. Local land-unit conversions can vary by region, so use verified regional conversion data when converting geometric area into a local land unit.