How to Use This Calculator
- Enter the diameter of the rebar in millimeters (mm). Standard rebar diameters typically range from 6mm to 50mm.
- Enter the length of the rebar in meters (m). Make sure to measure the length from the end of the rebar to where it will be installed.
- Click the "Calculate" button to compute the weight of the rebar.
- The result will be displayed in kilograms (kg).
Understanding the Formula
The calculator uses the following formula to determine the weight of rebar:
Weight (kg) = π × (d²/4) × L × 0.00617
Where:
- π = Mathematical constant Pi (approximately 3.14159)
- d = Diameter of the rebar in millimeters (mm)
- L = Length of the rebar in meters (m)
- 0.00617 = Weight per cubic meter of steel in kilograms (kg/m³)
Practical Applications
This calculator is particularly useful in construction for:
- Estimating material quantities for a project
- Calculating the weight of rebar for transportation and handling
- Ensuring structural integrity by verifying the correct amount of reinforcement
- Helping with budgeting and cost estimation
Example Calculation
For example, if you have a 10mm diameter rebar that is 5 meters long:
Weight = π × (10²/4) × 5 × 0.00617 ≈ 2.42 kg