Utilities calculator

Square footage calculator

Rectangle, circle and triangle geometry with area, perimeter and simple-prism volume displayed in multiple units.

By Feroz Sheikh · Formula UTIL-AREA-VOLUME-002 v2.0.0 · Tested formula

FormulaUTIL-AREA-VOLUME-002v2.0.0

Project inputs

Enter your measurements. Switching units converts the same project, including coverage and unit rates. Package yields keep the unit printed beside each field.

Area & volume calculator: measurement diagram. Measure the full diameter through the centre. Use the depth unit requested for this calculator.
Measure the full diameter through the centre. Use the depth unit requested for this calculator. View image
Refine measurements and rates at any time. Your current values are included in the material-list PDF.

Calculated result

120ft²

Rectangle area

FormulaUTIL-AREA-VOLUME-002

Area = L × W; Volume = L × W × depth

120 ft²

Area in ft²

11.15 m²

Area in m²

480 ft³

Simple-prism volume

Planning estimate, not engineering advice. Confirm site measurements and product specifications. Calculation limits.

This geometry hub calculates rectangular, circular or triangular plan area, perimeter and optional simple-prism volume in a transparent unit system.

  1. Choose rectangle, circle or triangle.
  2. Enter the dimensions defined by the selected shape.
  3. Use extrusion depth only when a simple-prism volume is appropriate, then pass the result to a material-specific calculator.

Add your project costs

Add rates if you are pricing a related project line. Pick a currency — badges, inputs, and totals follow.

This page is geometry, not a material takeoff. Leave rates at zero unless you are pricing a related line. Construclytic does not fetch supplier prices.

View estimate Quote / invoice Add another item

How this calculator works

A transparent area & volume calculator takeoff.

This geometry hub calculates rectangular, circular or triangular plan area, perimeter and optional simple-prism volume in a transparent unit system.

UTIL-AREA-VOLUME-002 is rectangle, circle or triangle geometry with area, perimeter and a simple-prism volume. It is the shared measuring stick other takeoffs sit on. It does not pick a material.

Worked example. Example: a 12 ft × 10 ft rectangle has 120 ft² of area. With 4 ft of extrusion depth, it contains 480 ft³; circular and triangular choices use their standard geometry formulas.
See the example inputs and calculated result

This separate example uses the calculator's starting values in imperial units. It stays unchanged when you edit the tool above. Example rates, yields and dimensions are assumptions, not recommendations for your project.

Area & volume calculator: example inputs
InputExample value
ShapeRectangle
Dimension A / base12 ft
Dimension B / height10 ft
Extrusion depth4 ft

Example result: Rectangle area — 120 ft².

Area = L × W; Volume = L × W × depth

Use the labelled units above when reproducing this example. To work in metric, switch the calculator to Metric; applicable measurements are converted, while product-specific units remain labelled.

  1. 1. Choose rectangle, circle or triangle.
  2. 2. Enter the dimensions defined by the selected shape.
  3. 3. Use extrusion depth only when a simple-prism volume is appropriate, then pass the result to a material-specific calculator.

Field notes that change the number

  • Depth for volume is an input. Leave it zero if you only need area.
  • A circle uses diameter, not radius, on this page.
  • Split unlike shapes rather than averaging them.

Common mistakes

  • Using this as a ready-mix order without waste and plant rounding.
  • Entering radius in the diameter field.
  • Mixing feet and metres on one line.

Need the broader workflow? Read the utilities planning guide.

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Questions

Questions about area & volume calculator

Can I use this for irregular shapes?

Break irregular geometry into measured simple shapes and total them, or complete a detailed takeoff.

Does it add waste?

No. This is a geometry utility; material-specific tools handle waste separately.

What is the formula ID?

This square footage calculator publishes formula UTIL-AREA-VOLUME-002, version 2.0.0. The ID stays on the result and on the estimate line.