Quikrete Concrete Calculator
Quikrete bag count for any pour
What is quikrete concrete calculator?
A Quikrete concrete calculator turns project dimensions into the number of Quikrete bags you need to buy. The math uses Quikrete’s published yield of 0.60 ft³ per 80-lb bag from the Concrete Mix Technical Data Sheet (quikrete.com/PDFs/DATA_SHEET-Concrete%20Mix%201101.pdf). 60-lb yields 0.45 ft³, 40-lb yields 0.30 ft³ — consistent across the product line.
Quikrete’s lineup. Concrete Mix (item 1101, yellow bag) is the standard pour-ready product — 4,000 PSI at 28 days, fine for slabs, walkways, and patios. Quikrete 5000 (item 1007) is the high-strength variant — 5,000+ PSI, better for footings, columns, and driveways. Crack Resistant (item 1006) adds polypropylene fibers to fight shrinkage cracks. Fast-Setting (item 1004) sets in 20-40 minutes; perfect for fence posts. Countertop Mix (item 1106) is a fine-aggregate version for cast countertops and decorative work.
The 5000 vs standard decision. Quikrete 5000 costs ~30% more than standard. For residential patios, the extra strength is overkill. For driveways, garage floors, footings, or anywhere a vehicle drives, the upcharge is cheap insurance. The bag yield is identical — same 0.60 ft³ per 80-lb bag — so this calculator’s output works for either product.
Quikrete vs Sakrete. Both publish identical 0.60 ft³ yields. Both rate 4,000+ PSI at 28 days for their standard mixes. The right brand is whichever your local store sells cheaper that week. Quikrete’s signature strength is Quikrete 5000 — a true 5,000 PSI mix that’s hard to match in store-brand alternatives.
Bagged vs ready-mix economics. At about 50 of 80-lb Quikrete bags (~1 cubic yard), ready-mix from a local concrete plant becomes cheaper. Past 3 cubic yards, ready-mix is dramatically cheaper. Quikrete is the right product for under-1-yard pours, repairs, and post-setting; ready-mix wins everything bigger.
When to use a quikrete concrete calculator
- Quikrete Concrete Mix — The standard yellow-bag product. 4,000 PSI at 28 days. 0.60 ft³ yield per 80-lb bag per the Quikrete TDS. Stocked at every Home Depot and most hardware stores.
- Quikrete 5000 (high-strength) — 5,000+ PSI for footings, structural columns, and heavy-traffic slabs. Same 0.60 ft³ yield as standard mix — only the strength rating changes.
- Quikrete Crack Resistant — Polypropylene fibers in the mix reduce shrinkage cracks. Identical yield to standard mix; ideal for thin slabs, overlays, and patches.
How to use the Quikrete Concrete Calculator
- Verify the product — Quikrete Concrete Mix (yellow bag, item 1101) is the standard 0.60 ft³/80-lb yield. 5000 (gray accent) and Crack Resistant (red accent) share the same yield.
- Pick a shape and enter dimensions — Slab for flat pours, Footing for rectangular footings, Column for sonotubes and post holes. The calculator handles all the unit conversions.
- Read the Quikrete-prefixed bag count — Output reads 'X of Quikrete 80-lb bags' — copy it straight into a shopping list. Count includes 10% waste.
- Match product to job — Standard mix for patios and walkways. Quikrete 5000 for footings and driveways. Crack Resistant for thin overlays. Fast-Setting for fence posts.
Worked examples
Patio: 12 × 12 ft × 4 in
Input: Slab tab: 12 ft × 12 ft × 4 in
Output: 1.78 cu yd / 81 of Quikrete 80-lb bagsFence post: 12 in dia × 30 in deep
Input: Column tab: 12 in dia × 30 in
Output: 0.07 cu yd / 4 of Quikrete 80-lb bagsStep: 36 × 12 × 7 in
Input: Footing tab: 3 ft × 12 in × 7 in
Output: 0.06 cu yd / 3 of Quikrete 80-lb bags