🛠️ What This Calculator Can Do

✅ Calculate concrete volume (wet & dry)
✅ Estimate material quantities (cement, sand, aggregate)
✅ Determine total rebar weight
✅ Compute axial load-bearing capacity for structural elements
✅ Generate professional print-ready reports with breakdowns
✅ Supports multiple structural elements like:

Slabs

Beams

Columns

Footings

Retaining Walls

Outer Walls

Plinth Beams

Staircases, and more

📏 Concrete Volume & Mix Ratio

• Wet Volume = L × W × H × Qty
• Dry Volume = Wet × 1.52 × (1 + Waste %)
• Mix ratio (e.g., M20 = 1:1.5:3) splits the dry volume into cement, sand, and aggregate

🔩 Rebar Calculations

• Weight per meter of rebar is based on the formula: Wt/m=0.006165×d²
• Total rebar weight is: Wt=(Wt/m)×Length×Qty

🏗️ Load-Bearing Capacity Calculation

Uses: P_u=ϕ_cf_ckA_c+ϕ_sf_yA_s

Where:

• f_ck​: concrete grade strength (M20 = 20 MPa, etc.)
• f_y: steel yield strength (Fe 500 = 500 MPa, etc.)
• A_c​: cross-sectional area (width × height)
• A_s​: steel area from diameter and number of bars
• ϕ-specific safety factors (e.g., IS 456 uses 0.40 for concrete and 0.67 for steel)

You can switch between IS 456, ACI 318, or Eurocode 2 using the dropdown at the top.

1️⃣ Add a Concrete Element

Click “+ Add Element” under the “Concrete Elements” section. Select a preset like “Column” or “Footing” to auto-fill typical values. Or choose “Custom” to enter your own.

2️⃣ Add Rebars (Optional)

Use the “Rebar Schedule” section if you want to calculate weight-only rebars that aren’t tied to capacity (e.g., for slabs or beams). These values show up in the Rebar Report.

3️⃣ Choose Design Settings

Select:

• 📘 Design Code: IS 456, ACI 318, or Eurocode 2
• 🔩 Steel Grade: Fe 415, Fe 500, Fe 550

These affect the load-bearing formula behind the scenes.