USD · 12,345.67US customary measurementsRoad distance: miles
United States planning scenario. Amounts, prices and rates are editable examples. No verified local tax bands, exemptions, benefits or lender rules are applied. Currency amounts are not exchanged.
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Your details
Enter length or first base (ft). The calculation converts these units internally.
Enter width or perpendicular height (ft). The calculation converts these units internally.
Enter second parallel base (ft). The calculation converts these units internally.
Enter radius (ft). The calculation converts these units internally.
Enter a whole number.
USD
Enter price per ft². The calculation converts these units internally. Example only. Enter the amount or rate applicable to your situation in United States.
Area (ft²)
215.278
Amounts in USD · United States · editable planning estimate
Estimated cost$400.00
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How this result was calculated
Rectangle=L×W; triangle=L×W/2; circle=πr²; trapezoid=(base1+base2)×height/2. Multiply by count.
Country setup: United States. Displayed measurements are converted to the formula's base units internally.
Assumption: Plan area and cost estimate. All dimensions in the displayed units; height for triangles and trapezoids is perpendicular. United States planning scenario. Amounts, prices and rates are editable examples. No verified local tax bands, exemptions, benefits or lender rules are applied. Currency amounts are not exchanged.
Calculation version 1.0.0 · Support state: generic
Formula and method
Rectangle=L×W; triangle=L×W/2; circle=πr²; trapezoid=(base1+base2)×height/2. Multiply by count.
This calculation uses the values you enter. It runs in your browser and does not request a location or account.
Worked example
5 m ×4 m gives 20 m², about 215.28 ft².
Questions people ask
Which method does this tool use?
Rectangle=L×W; triangle=L×W/2; circle=πr²; trapezoid=(base1+base2)×height/2. Multiply by count.
What should I check before using the result?
Plan area and cost estimate. All dimensions in the displayed units; height for triangles and trapezoids is perpendicular.