Quikrete Mortar Calculator

Instantly calculate the cubic yards, 80‑lb bag count, and cubic feet you need for a mortar mix—free and immediate.

  • Free
  • No sign-up
  • Instant results

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How to use it

  1. Enter length in feet.
  2. Enter width in feet.
  3. Enter thickness in inches and click Calculate.

What it does – The Quikrete Mortar Calculator turns the dimensions you input (length, width, thickness) into three useful numbers: total cubic feet, cubic yards, and the number of standard 80‑lb bags required. Why it matters – Knowing the exact volume prevents over‑ordering, saves money, and ensures you have enough mix for a strong bond. How to read the results – Cubic feet shows raw volume, cubic yards is the industry‑standard unit for delivery, and bags tells you how many 80‑lb sacks to purchase (each bag ≈ 0.6 ft³). No guesswork, just clear numbers you can act on right away. The calculator also converts the cubic‑foot total to cubic yards (1 yd³ = 27 ft³) so you can compare with supplier quotes. It rounds the bag count up to the next whole bag, because you can’t buy a fraction of a sack. Use the tool before ordering material for patios, walkways, or brick ties to keep projects on budget.

Pro tips

  • Add 5‑10% extra for spillage.
  • Round up bag count to the next whole bag.
  • Order a full pallet to save on shipping costs.
  • Double‑check thickness conversion from inches to feet.

Real-life examples

  • Building a brick wall and need exact mortar quantity.
  • Repairing a concrete walkway with a thin mortar layer.
  • Laying pavers and must order the right amount of mix to avoid delays.

Case study

Mike needed mortar for a 12‑ft by 8‑ft patio with 3‑in thickness. The calculator showed 1.1 yd³ and 45 bags, so he ordered exactly that and avoided a $200 overrun.

Frequently asked questions

How many 80‑lb bags are needed for a given volume?
Divide the total cubic feet by 0.6 and round up to the next whole bag.
What is the conversion from cubic feet to cubic yards?
27 cubic feet equal one cubic yard; divide the cubic‑foot total by 27.
Do I need to add waste when ordering mortar?
Yes, add 5‑10% extra to cover spillage and minor miscalculations.
Can I use the calculator for concrete, not just mortar?
The volume conversion works for any mix, but bag yield may differ for other products.
Why is thickness entered in inches?
Thickness is usually specified in inches on project plans; the calculator converts it to feet internally.