Square Foot Estimate Calculator

Formatting only. This does not change the calculation.
The area is always converted to every common unit; this picks which one is the headline.
Trapezoids only.
Comma-separated areas in squared length units, for L-shaped or multi-part spaces.
Area one package covers, in squared length units, from the product label.
E.g. price per square foot when the length unit is feet.
Estimated cost
1,275.00
Square Footage Calculator
Area
300
Area including waste
300
Area (square feet)
300 ft2
Area (square metres)
27.870912 m2
Area (square yards)
33.333333 yd2
Area (square inches)
43,200 in2
Area (acres)
0.006887 ac
Area (hectares)
0.002787 ha
With waste (square feet)
300 ft2
Perimeter
70
Worked out from NIST Special Publication 811, Guide for the Use of the International System of Units (exact 1 ft = 0.3048 m, 1 acre = 43,560 ft2) and 2 other sources.

How this is worked out

2 steps
  1. Plan area = 20 ft x 15 ft = 300 ft^2
  2. Estimated cost = 1275

Results are general information, not financial, tax, legal, medical or engineering advice.