Cement Per Square Foot Calculator

How to Use This Calculator

1. Enter the Area of your project in square feet. For example, for a 10x10 patio, enter 100.
2. Enter the Thickness of the cement layer you need in inches. A standard patio might be 4 inches thick.
3. The Cement Density is pre-filled with a standard value (145 lbs/cu ft for regular cement). You can change this if needed.
4. Click the Calculate button to get the results.
5. The calculator will show the total amount of cement needed in pounds and the number of 60-pound bags required.

Formula Explained

The calculator uses the following formula:

Cement Needed (lbs) = Area (sq ft) × Thickness (ft) × Density (lbs/cu ft)

For example, if you have a 100 sq ft area with a 4-inch (0.333 ft) thick cement layer, and standard cement density is 145 lbs/cu ft:

Cement Needed = 100 × 0.333 × 145 = 4821 lbs

This equals approximately 80.35 60-pound bags of cement (rounded up to 81 bags).

Practical Tips

• It's generally recommended to add extra cement (5-10%) to account for waste and spillage.
• Always check with your supplier for exact cement densities if you're using a special type of cement.
• For larger projects, consider using a wheelbarrow or cement mixer for easier transportation and mixing.