Comprehensive Beam & Column Calculator (Multiple Bars + Mix Ratios)

Beam & Column Calculator (Multiple Bars + Mix Ratios)

Core Formulas & Reference

1) Concrete Volume: Volume = width × depth × length (in meters).

2) Steel Rebar Weight: W(kg) = (dia² / 162.2) × (Length in m) × (Qty) (using predefined weights).

3) Dry Volume Factor: Multiply net volume by ~1.54 to account for bulking/voids.

4) Concrete Mix Ratios: e.g., M20 ~ 1 : 1.5 : 3.

5) Cement Conversion: 1 m³ of cement ~1440 kg.

Choose your units, then add “Beams”, “Columns” or “Concrete Items”. Each beam/column can have multiple bar sets (top, bottom, extra, etc.) if needed. Then pick a Concrete Grade for mix ratio breakdown.

Units: Metric (m) Imperial (ft + in)

Beams (with multiple bar sets & grade)

Beam Results:

Beam Details:

Columns (two bar sets & grade)

Column Results:

Column Details:

Concrete & Grade Items

Add rectangular items if needed (footings, slabs, etc.).

Items Results:

Bar Calculation Tools

1) Calculate Total Steel Weight from Bar Length

Bar Length (ft):

Bar Diameter (mm): 8 mm 10 mm 12 mm 16 mm 20 mm 25 mm 32 mm

Total Bars:

2) Calculate Number of Bars from Total Weight

Total Weight (kg):

Bar Diameter (mm): 8 mm 10 mm 12 mm 16 mm 20 mm 25 mm 32 mm

Single Bar Length (ft):