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Pinnacle Contractor Calculator

Concrete Calculator

Calculate concrete yards, bag counts, gravel base, labor, material cost, waste, markup, and client-ready pricing for slabs, patios, footers, driveways, sidewalks, and stamped concrete finishes.

This is an estimate, not a bid or contract. Every job has unique conditions — access, structure, moisture, code — that software cannot account for.

Use at your own risk. Pinnacle Designs, LLC is not liable for bids, losses, or code compliance based on calculator output. You are responsible for verifying all numbers before use.

Terms of Service (limitation of liability & your responsibilities)

Always verify local building codes. Supplier prices vary by region. Add waste for cuts, mistakes, and damaged material.

Job Site Market (ZIP & Region)

Enter the job ZIP — not your shop — to load typical local labor and material defaults. Useful when bidding out of town or out of state.

Most U.S. ZIPs auto-select a region. Unknown ZIPs — pick the closest market manually.

Typical U.S. contractor rates, loaded ~5% above market average — adjust for your bid.

National Average — typical contractor labor ~$57.75/hr

Typical labor rates align with the national average.

Defaults load ~5% above typical market averages — a conservative benchmark when clients compare your bid. Edit any rate below for your actual numbers.

Regional defaults update labor, materials, markup, and tax in this calculator. Your job ZIP and region are saved across all calculators — change ZIP when you switch to a different job site.

Estimate — not a bid. This is an estimate, not a bid or contract. Every job has unique conditions — access, structure, moisture, code — that software cannot account for. Each job is unique. Final prices may vary based on site conditions, scope, materials, labor, and your local market. Use at your own risk. Pinnacle Designs, LLC is not liable for bids, losses, or code compliance based on calculator output. You are responsible for verifying all numbers before use. Full terms

Project Details

Basic screed and float — typical for footers and structural pours.

Recommended: 10% for slabs

Materials & Pricing

Labor & Markup

Save stores this on your device · Add to Estimatesends material & labor lines to the Full Job Estimator

Material List / Shopping List

  • Ready-mix concrete
    2.72 cu yd
  • 80 lb bags (alt.)
    124 bags
  • 60 lb bags (alt.)
    163 bags
  • 40 lb bags (alt.)
    247 bags
  • Gravel base
    2.72 cu yd

Results Summary

Pricing RegionNational Average
Square Feet200
FinishStandard / Float Finish
Cubic Feet66.67
Cubic Yards2.47
Yards w/ Waste2.72
80 lb Bags124
60 lb Bags163
40 lb Bags247

Recommended Client Price

$1,523.04

Estimate — not a bid

Numbers from this tool are planning estimates only. They are not a contract, quote, binding bid, or professional advice. Every job carries its own challenges — hidden damage, tight access, moisture, local code, and scope details — that no calculator can see.

Each project is different. Access, existing conditions, code requirements, material choices, and your local market all affect the final price. Use these figures as a starting point — your actual price may vary.

By using this tool you agree you will not rely on it as a final bid without your own verification. See our Terms of Service for limitations of liability and your responsibilities.

Read full terms & conditions

Cost Breakdown

Materials$527.60
Labor$462.00
Delivery$78.75
Overhead$106.84
Markup$235.04
Tax$112.82
Client Price$1,523.04
Profit (15.4% margin)$235.04
How this was calculated
  1. Cubic feet = length (ft) × width (ft) × thickness (ft)
  2. Cubic yards = cubic feet ÷ 27
  3. With waste = cubic yards × (1 + waste% ÷ 100)
  4. 80 lb bag yield ≈ 0.022 cu yd; 60 lb ≈ 0.0167; 40 lb ≈ 0.011
  5. Client price = direct costs + overhead + markup + tax

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Frequently Asked Questions

How many cubic yards of concrete do I need?
Multiply length × width × thickness in feet to get cubic feet, then divide by 27 for cubic yards. Add 10% waste for most slab projects.
How many 80 lb bags equal one cubic yard?
One cubic yard requires approximately 45–46 bags of 80 lb concrete mix, depending on yield. Always round up and add waste.
Should I include gravel base in my estimate?
Yes for slabs, patios, driveways, and sidewalks. A 4-inch gravel base improves drainage and reduces cracking. Check local code requirements.
How much does stamped concrete add to a pour?
Stamped work adds color hardener, release agent, stamp mats, and sealer plus extra finish labor — often $8–12+ per square foot above a standard broom finish, depending on pattern complexity and access.
Can I estimate in-floor heated stamped concrete?
Yes — for enclosed interior slab floors only. Select Slab (Interior Floor), choose Stamped Concrete, then enable In-Floor Radiant Heat. We do not recommend radiant heat for exterior flatwork (patios, driveways, sidewalks): outdoor slabs lose heat quickly and winter fuel costs are usually prohibitive.
What markup should contractors use on concrete work?
Most contractors target 15–30% markup on top of overhead, depending on job complexity, access, and local market rates.

Professional Concrete Calculator for Contractors

Whether you are pouring a patio slab, footer, driveway, sidewalk, or stamped decorative flatwork, accurate concrete quantity estimates save money and prevent mid-job shortages. Our free concrete calculator handles cubic yard calculations, bag-count conversions, gravel base, rebar allowances, labor, delivery, tax, and markup in one place.

Use imperial units with optional thickness in inches or feet. Set your local ready-mix price per cubic yard and adjust waste percentage based on project complexity. The shopping list gives you both ready-mix and bag alternatives for smaller pours.

Contractors use this tool to bid faster with transparent math — then send results to the Full Job Estimator for a client-ready proposal. Homeowners use it to sanity-check supplier quotes before ordering concrete.

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