Construction Materials
Rebar Weight Calculator
Calculate the weight of reinforcing steel bars based on diameter, length, and quantity.
Rebar Specifications
Rebar Size (Diameter)
Standard rebar sizes with approximate diameter
Length per Bar
ft
Length of each rebar
Number of Bars
bars
Total number of rebar pieces
Unit Options
Weight Unit
Display weight in pounds or kilograms
Weight
0
Total Rebar Weight
0 lbs
total steel weight
Weight per Bar
0 lbs
Weight per Foot
0 lbs/ft
Total Length
0 ft
Rebar Size
#4 (12mm)
📊 Detailed Breakdown
| Parameter | Value | Unit |
|---|
How the formula works
Weight per Foot = (Diameter in inches)² × 0.666 | Total Weight = Weight per Foot × Length × Quantity
- Weight per Foot = (diameter in inches)² × 0.666 (lbs per foot)
- Weight per Bar = Weight per Foot × Bar Length
- Total Weight = Weight per Bar × Number of Bars
- Total Length = Bar Length × Number of Bars
- For metric: Weight per meter = (diameter in mm)² × 0.006165 (kg/m)
- Steel density = 490 lbs/ft³ (7850 kg/m³)
- Standard rebar sizes: #3 (10mm), #4 (12mm), #5 (16mm), #6 (20mm), #7 (22mm), #8 (25mm)
- Results can be displayed in pounds (lbs) or kilograms (kg)