Free concrete yardage calculator
Slab, footing, or wall — how many yards to order, bags if you're bagging it, truck loads if you're not. Type dimensions like you write them: 20 or 20'6". Free, no signup.
- Bagging it instead? (80 lb bags)
- 240
- Truck loads (10-yard truck)
- 1
One pour is easy. A full bid set isn't.
The calculator handles a single pour. A real bid has forty of them, plus rebar, formwork, and revisions — that's where hand math breaks down.
Manual yardage calcs → errors
Hand-calculating cubic yards from dimensions is slow and error-prone. One wrong depth throws off the entire pour.
Rebar schedules in separate spreadsheets
Rebar counts, spacing, and weight live in a different file than your takeoff. Nothing stays in sync.
No connection between measurement and estimate
You measure in one tool, estimate in another. Every change means re-entering numbers.
15 concrete templates with live calculations
Pick a template, switch variants, see real numbers update. Every column, formula, and rate is fully customizable — or create your own templates from scratch.
Concrete Formwork — Wall
Wall formwork material + labor by SFCA including height factor adjustments
20 columns · 4 variants
Yardage Calculations
Measure an area, set depth, get cubic yards automatically. Waste factors built in.
- Area × depth → CY auto-calc
- Configurable waste percentage
- Slab, footing, wall volume
- Running totals by pour
Rebar Estimating
Define spacing and bar size — get count, linear footage, and weight from the measured area.
- Spacing-based bar count
- Linear footage per bar size
- Weight calc by bar number
- Lap splice allowance
Formwork Takeoffs
Measure perimeter, set height, get square feet of contact area with reuse factors.
- Perimeter → SFCA calculation
- Reuse factor adjustment
- Strip/set labor rates
- Form tie and hardware counts
Foundation Templates
Pre-built templates for spread footings, grade beams, stem walls, and piers.
- Spread footing calculator
- Grade beam templates
- Stem wall & retaining wall
- Pier and pile cap formulas
Pour Scheduling
Total volume → truck count and pour rate. Know your logistics before you call the batch plant.
- Volume → truck count (10 CY)
- Pour rate estimation
- Pump vs. direct placement
- The numbers for the batch plant call
Wire Mesh Takeoffs
Select mesh type and sheet size — get exact sheet count from your measured slab area with overlap.
- 6x6, 4x4, 10x10 mesh types
- Sheet count from slab area
- Waste/overlap % built in
- Price per sheet → total cost
Aggregate & Base Material
Measure the area, set depth and density — get cubic yards and tonnage for any base material.
- Crushed stone, gravel, sand
- Density conversion to tons
- Depth-based volume calc
- Waste factor included
Excel-Ready Export
Download your entire concrete takeoff as a CSV that opens straight in Excel — grouped, totaled, ready to price.
- One-click CSV download
- Opens directly in Excel
- Grouped by pour / element
- Ready for bid submission
Built for concrete contractors who are tired of spreadsheet takeoffs
Footings, slabs, walls, grade beams — one tool for measurement and estimation. No more copy-paste between apps.
"The process for obtaining measurements for plans has been cut in half with Jobplans AI. I know we can get quick accurate measurements that keeps our shop moving."
Concrete takeoff questions, answered
- How do you calculate concrete yardage for a slab?
- The formula is (area in square feet × depth in inches) ÷ 324 = cubic yards. For example, a 1,000 sq ft slab at 6 inches deep is (1000 × 6) ÷ 324 = 18.5 cubic yards. Add a 5–8% waste factor to account for spillage, over-excavation, and pump loss, bringing the order quantity to about 20 cubic yards.
- What waste factor should I use for concrete?
- Industry standard is 5–8% waste for concrete volume, depending on placement method. Pumped concrete typically runs 5–6% waste, while chute or wheelbarrow placement runs 7–8% due to higher spillage. For small or irregular pours, use the higher end of the range. Always document your assumption in the estimate.
- How do I calculate rebar weight from a takeoff?
- Multiply total linear footage by the per-foot weight of the bar size. Standard weights: #3 = 0.376 lbs/ft, #4 = 0.668 lbs/ft, #5 = 1.043 lbs/ft, #6 = 1.502 lbs/ft, #7 = 2.044 lbs/ft, #8 = 2.670 lbs/ft. Add 5% for overlaps and bending. For a slab mat with #4 bars at 12" on center in both directions, the linear footage equals roughly 2 × area (each direction).
- How do I calculate formwork square footage?
- Formwork is measured as contact area — the square footage of form in direct contact with the concrete. For a spread footing, it is the perimeter × depth. For a wall, it is 2 × length × height (both sides). Apply reuse factors (typically 4–8 reuses per form) to determine the actual forming cost per square foot: a form reused 4 times costs 1/4 of its purchase price per pour.
- What is the difference between a concrete takeoff and a concrete estimate?
- A takeoff produces quantities — cubic yards of concrete, pounds of rebar, square feet of formwork. An estimate multiplies those quantities by unit costs and adds labor, equipment, overhead, and profit to produce a bid price. Modern software like Jobplans combines both: takeoff quantities flow directly into a pricing table without an export/import step.
- How long does a concrete takeoff take on Jobplans?
- Depends on project size and complexity, but typical benchmarks: a small commercial slab-on-grade runs 15–30 minutes. A mid-sized commercial foundation (footings + stem walls + slab) runs 1–3 hours. A large structural slab with complex reinforcement runs 3–8 hours. Compare with manual takeoff on the same project, which typically takes 3–5× longer.
- Does Jobplans handle irregular slab shapes and cutouts?
- Yes. Use the polygon or polyline tool to trace irregular slab boundaries. For cutouts (staircase openings, floor drains, elevator pits), draw the cutout polygon and Jobplans subtracts it from the enclosing slab area automatically. Running totals update in real time as you add or edit shapes.
- Can I use Jobplans for residential concrete takeoffs?
- Yes. Residential workflows benefit especially from the browser-based interface and flat pricing — no expensive enterprise licensing, no Windows-only installer. Use the spread footing template for footings, the slab-on-grade template for garage and basement slabs, and the sidewalk template for flatwork. The 7-day free trial lets you run a full pilot on your next bid.