DIY & materials
Area, volume & geometry Calculator
Calculate rectangular, circular, triangular and cylindrical measurements. This free area, volume & geometry calculator shows the calculation and its assumptions so you can compare your own figures.
Calculated on your device
Your results
Area20 m²
Calculate rectangular, circular, triangular and cylindrical measurements.
Calculated outcomes
- Perimeter
- 18
- Diagonal
- 6.4031
Assumptions and estimates
- Method: Uses standard Euclidean area, perimeter, diagonal and volume formulas.
- For a triangle, height must be perpendicular to the base. All dimensions use metres.
Useful next steps
- Use Compare options to test an alternative side by side.
- Copy, print or download a record of this calculation when you need one.
Reports open your email app addressed to s@s1.ie with the public page address only. Your inputs are never added.
How the area, volume & geometry calculation works
Uses standard Euclidean area, perimeter, diagonal and volume formulas.
For a triangle, height must be perpendicular to the base. All dimensions use metres.
Using this calculator
- Enter your own figures in the labelled inputs. Keep the currencies, units and time periods consistent.
- Choose any applicable rate profile, pattern or assumption shown for this tool. Open additional inputs when relevant.
- Review area and volume, then read the stated assumptions and eligibility conditions before using the result.
Worked example
This is a static example using illustrative inputs, not facts about you or today’s date. The displayed eligibility selections and assumptions apply only to this example.
See example inputs
- Shape
- Rectangle
- Length / triangle base (m)
- 5
- Width (m)
- 4
- Radius (m)
- 2
- Height (m)
- 3
- Area
- 20 m²
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