Calculate total lawn area from up to four rectangular sections and convert square feet to acres.
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Gravel, mulch, topsoil, sand, lawn and outdoor project material estimates.
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A 100×80-foot rectangular lawn is 8,000 square feet, or about 0.184 acre.
Calculate total lawn area from up to four rectangular sections and convert square feet to acres. The result is intended for quick estimates, checking arithmetic and comparing scenarios. When a result affects a contract, tax filing, medical decision, building-code requirement or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
A rectangular lawn 100 feet by 80 feet covers 8,000 square feet, approximately 0.184 acre.
Measure additional rectangles separately, then add their areas rather than averaging side lengths.
Sloped terrain, excluded landscape beds and overlapping sections can affect the true treated area.
Related tools: Grout Calculator · Mulch Calculator
Calculate total lawn area from up to four rectangular sections and convert square feet to acres.
Total area is the sum of length × width for each section. Acres = square feet ÷ 43,560.
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