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Calculate square footage and square meters for any rectangular space.
Square Feet = Length × Width. Square Meters = Square Feet × 0.0929.
Result: Area: 300 sq ft, 27.87 sq m
Divide the room into rectangles, calculate each, and add them together.
1 sq ft = 0.0929 sq m. Multiply sq ft by 0.0929 to get square meters.
Measure the base and height of the triangle, multiply them together, then divide by 2. For example, a triangular area with a 12-foot base and 8-foot height equals 48 square feet (12 × 8 ÷ 2).
One gallon of paint typically covers approximately 350-400 square feet of wall space. Measure total wall area, subtract windows and doors, then divide by 350 for a conservative estimate of gallons needed.
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