Construction
Rectangle Footage Cost Calculator
Cost of a rectangular area from length, width, and cost per ft².
Free to use — no sign-up or login.
Area
ft²
Total cost
Amortization schedule
| # | Date | Payment | Principal | Extra | Interest | Balance |
|---|---|---|---|---|---|---|
Rectangle area is length times width. 30 ft by 15 ft is 450.00 ft², and at $4.00 per ft² the cost is $1,800.00.
One equal side belongs on the square footage cost calculator.
Area first, then price
Length 30 ft times width 15 ft is 450.00 ft². At $4.00 per ft² the cost is $1,800.00.
Unit price only
Swap length and width and the area stays the same. A known area with no edges belongs on the footage cost page.
Worked example: rectangle footage cost
Area 450.00 ft² at $4.00/ft² costs $1800.00.
\[ A = 30 \times 15 \]
Frequently asked questions
What does the Rectangle Footage Cost – Length Times Width measure?
Area 450.00 ft² at $4.00/ft² costs $1800.00.
How many decimal places does Rectangle Footage Cost – Length Times Width show?
Area 450.00 ft² at $4.00/ft² costs $1800.00. Lengths, areas, volumes, and money use two decimals. Purchase counts are whole numbers.
Does Rectangle Footage Cost – Length Times Width include waste?
The rectangle page does not pad the area for waste. Measure the clear length and width.
Can Rectangle Footage Cost – Length Times Width mix units?
No. Rectangle Footage Cost – Length Times Width expects every input in the unit printed on its label.
Is Rectangle Footage Cost – Length Times Width a code or structural check?
No. Rectangle Footage Cost – Length Times Width is a quantity estimate. Local rules and site conditions stay outside the formula.
References
Assumptions and limitations
Rectangle cost is length times width times the unit price. Cuts and openings are not priced.