120,000 sq ft
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Just about 400
300 by 400 feet is two and three-quarters acres
400 square feet. This is an easy calculation - just multiply the length in feet by the width in feet. The answer is the number of square feet.
400 square feet.
One acre has 43,560 square feet. Divide the number of square feet by that and you get the number of acres. This gives you an answer of 3.67 acres.