Grout Coverage Calculator Estimate grout required using lbs. of grout per sq. ft. coverage metrics. Tile Category Standard Tile Planks & Irregular Tile Tile Size / Thickness Grout Type Unsanded Sanded Joint Size Area Area Unit Square Feet Square Metres Bag Size 10 lb 25 lb 50 lb Waste / Overage 0% 5% 10% 15% Price per Bag / Unit Calculate