Feet. Millimeters. 1 ft. 304.8 mm. 2 ft. 609.6 mm. 3 ft. 914.4 mm ... 3 sq ft. 0.279 sq m. 4 sq ft. 0.372 sq m. 5 sq ft. 0.465 sq m. 6 sq ft. 0.558 sq m.
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