Weight Of Tube Calculator
How much a hollow metal tube weighs? find it with Weight Of Tube Calculator . It uses outer diameter, inner diameter, length, and material density. The tool multiplies cross-sectional area by length and density. You get weight in kilograms or pounds. It saves time. It avoids manual errors. It works for steel, aluminum, copper, and more.
Why One Need To Calculate Weight Of Tube
For example a teacher stands by a lab table. He shows a student a steel tube. He says: “I need its weight for a beam.” You measure outer dia 50 mm. You measure inner dia 40 mm. You measure length 2 m. You use steel density 7850 kg/m³. You calculate now to pick the right support. You check shipping and load limits. You act fast and safe.
Calculate With example — step by step
First know formula:
Weight = (π/4) × (D² − d²) × L × ρ.
Step 1: convert to meters:
D = 50 mm = 0.05 m.
d = 40 mm = 0.04 m.
L = 2 m.
Step 2: squares:
0.05² = 0.0025.
0.04² = 0.0016.
Difference = 0.0025 − 0.0016 = 0.0009.
Step 3: area:
π/4 ≈ 0.7853981634.
Area = 0.7853981634 × 0.0009 = 0.0007068583471 m².
Step 4: volume:
Volume = 0.0007068583471 × 2 = 0.0014137166942 m³.
Step 5: weight:
Weight = 0.0014137166942 × 7850 = 11.10 kg (approx).
Pro Tip: Use quick math or this calculator to avoid mistakes. Ultimately, the calculator gives fast, reliable weight so you plan right.
