1. What is a Steel Rebar Weight Calculator?

Definition: This calculator estimates the weight of steel reinforcement bars (rebar) based on diameter and length.

Purpose: It helps construction professionals and engineers quickly determine rebar weight for structural calculations and material ordering.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W \) — Weight of rebar (kg)
• \( D \) — Diameter of rebar (mm)
• \( L \) — Length of rebar (m)

Explanation: The formula calculates weight based on the cross-sectional area of the rebar and steel density (implied in the constant 162.27).

3. Importance of Rebar Weight Calculation

Details: Accurate weight calculations are essential for structural integrity, cost estimation, and transportation planning in construction projects.

4. Using the Calculator

Tips: Enter the rebar diameter in millimeters and length in meters. Both values must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What does the constant 162.27 represent?
A: It's derived from the density of steel (7850 kg/m³) and unit conversions to simplify the formula for mm and m inputs.

Q2: Does this work for all rebar sizes?
A: Yes, the formula is valid for standard rebar diameters from 6mm to 50mm.

Q3: How accurate is this calculation?
A: It provides theoretical weight. Actual weight may vary slightly due to manufacturing tolerances and surface deformations.

Q4: Can I calculate weight for multiple rebars?
A: Multiply the result by the number of identical rebars to get total weight.

Q5: What about different steel grades?
A: The formula assumes standard carbon steel density. For other alloys, consult specific density values.