Convert from cubic foot to Teaspoon [US]

Unit Definition (cubic foot)
The cubic foot is a traditional unit of volume in English speaking countries. One cubic foot equals 1728 in³, 1/27 yd³, 0.028 316 85 m³, or 28.316 85 liters. The cubic foot also holds about 7.4805 U.S. liquid gallons or about 6.2288 British Imperial gallons.

Unit Definition (Teaspoon [US])
The teaspoon is a unit of volume used in food recipes. The U.S. teaspoon is equal to 1/3 tablespoon or 1/48 cup; this is equivalent to 1/6 fluid ounce, about 0.30 cubic inches, or approximately 4.9 milliliters.