Quikrete Mortar Mix Calculator

Calculate how many cubic yards, bags, and cubic feet of Quikrete mortar you need instantly and free.

  • 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.
  4. Read cubic yards, bags, and cubic feet results.

The Quikrete Mortar Mix Calculator turns your project dimensions into the exact amount of material you’ll need. Input length, width, and thickness, and the tool instantly shows cubic feet, converts that to cubic yards, and tells you how many 80‑lb bags are required (each bag = 0.6 cf). Knowing the yardage helps you compare prices, while the bag count prevents under‑ordering. The results are presented in three columns: Cubic Yards, Bags, and Cubic Feet. Use the numbers to place orders, schedule deliveries, and keep your budget on track. No guesswork, just clear numbers you can trust.

Pro tips

  • Add a 5‑10% waste allowance for cuts and spillage.
  • Round up the bag count; you can’t purchase a fraction of a bag.
  • Order one extra bag for future repairs or touch‑ups.
  • Double‑check thickness conversion from inches to feet before entering.

Real-life examples

  • A homeowner building a 4‑in‑thick patio slab needs to know how many mortar bags to buy.
  • A contractor estimating mortar for a brick wall wants quick yardage to price the job.
  • A DIYer repairing a small garden walkway wants to avoid over‑ordering material.

Case study

Sam entered a 12 ft × 8 ft area with a 4‑in thickness, got 2.96 cubic yards, 166 bags, and ordered 170 bags. He finished his patio on schedule without a single run‑out, saving time and money.

Frequently asked questions

How do I convert thickness from inches to feet?
Divide the inches by 12; the calculator does this automatically.
Why does the bag count seem higher than the cubic‑foot total?
Each 80‑lb bag provides 0.6 cf, so you need more bags than cubic feet divided by 1.
Can I use the calculator for multiple pours?
Enter the total combined dimensions for all pours to get a single total.
Do I need to round up the yardage?
Round up to the nearest tenth of a yard; suppliers usually sell in whole yards.
Is this calculator only for Quikrete mortar?
Yes, the bag yield is based on Quikrete’s standard 80‑lb mortar mix.