Cement bags, yards, delivery, and cost
Cement Calculator
Answer first: calculate cement bags, cubic yards, and cost from slab dimensions or a known volume. Compare bagged cement with ready-mix delivery, check minimum loads, short-load fees, waste, and quote totals before ordering.
10 ft x 10 ft x 4 in slab
about 1.23 yd3 and ~56 bags
At 0.6 ft3 per 80 lb bag with 10% waste. Use the bag yield that matches your mix.
1 cubic yard
about 45 bags at 0.6 ft3
Compare with local ready-mix minimums before ordering bags for larger pours.
Calculate cement bags, yards, and cost
Enter slab dimensions or switch to known volume. Compare bags with ready-mix delivery, then check the quote before ordering.
Volume
1.36 yd3
Bags needed
62
Ready-mix cost
$367
Bagged cost
$310
Interactive workflow
Run the numbers, then save or export the project
Save this estimate or download a PDF report
The PDF report uses the current calculated result. Save the estimate first when you want to reuse the inputs later.
What ordinary cement calculators miss
The useful result is not only a bag count. It is the delivery minimums, waste, fees, and cost comparison that decide whether bags or ready-mix is the right choice.
| Benchmark says | Replace with local input | Next check |
|---|---|---|
| One bag count, no cost | Compare bag count, bag cost, and ready-mix cost with delivery and access fees side by side. | Order the cheaper path after confirming local minimums and availability. |
| Ignores waste | Add a waste factor so the bag count and yardage reflect real pour conditions. | Use 5% for clean forms, 10% for typical pours, and more for uneven ground. |
| No delivery check | See minimum billable yards and short-load exposure before assuming ready-mix is available. | Call the supplier to confirm minimums, lead time, and access. |
Cement ordering checklist
Use these checks before relying on the estimate for ordering or budgeting.
| Signal to check | What it means | Next step |
|---|---|---|
| Bag yield | The bag yield matches the cement mix and bag size you will actually buy. | Check the bag label or supplier spec for cubic feet per bag. |
| Waste factor | The waste percentage matches site conditions, form quality, and pour complexity. | Increase waste for uneven trenches, over-excavation, or complex shapes. |
| Ready-mix minimum | The supplier minimum load and short-load fee are confirmed before choosing delivery. | Ask the supplier about minimums, lead time, and access restrictions. |
| Delivery and access | The truck can reach the pour location, and access fees are included or excluded. | Confirm chute reach, clearance, and any pump or wheelbarrow needs. |
Related concrete planning tools
Move from a single calculation into a purchase, proposal, or pour-day decision with connected calculators and checklists.
How do I calculate how many cement bags I need?
Enter your slab length, width, and thickness. The calculator converts dimensions to cubic yards or feet, adds your waste factor, then divides by the bag yield to show the bag count and cost.
How many cement bags are in a cubic yard?
At 0.6 cubic feet per 80 lb bag, one cubic yard (27 ft3) takes about 45 bags. Adjust the bag yield in the calculator to match your actual bag size.
Should I use bags or ready-mix for my cement project?
For small pours under 1 to 2 yards, bags can be cheaper after delivery fees. For larger pours, ready-mix is usually cheaper per yard. Use the calculator to compare both side by side with your local prices.
What is the difference between cement and concrete?
Cement is the binding powder. Concrete is the finished mix of cement, sand, gravel, and water. This calculator estimates concrete material volume and cost, not pure cement powder quantities.
Does this calculator include delivery fees?
Yes. Enter the delivery fee, access fee, and minimum billable yards to see the full ready-mix cost alongside the bagged cost. Both paths include their respective fixed fees.
Planning disclaimer
This calculator provides planning estimates from dimensions and user-entered prices. It does not confirm supplier availability, minimum loads, access, pump requirements, mix design, or structural adequacy. Confirm actual prices, minimums, and site conditions with your supplier before ordering.