Steel Tube Weight Calculator

Calculator Inputs

Tube shape

Material preset

Density (kg/m³)

Preset values can be edited anytime.

Dimension unit

Length unit

Output weight unit

Outside diameter

Outside width

Outside height

Wall thickness

Length per piece

Quantity

Wastage allowance (%)

Price per kg

Currency label

Reset

Example Data Table

Tube Type	Outer Size	Thickness	Length	Quantity	Approx. Weight per Meter	Approx. Batch Weight
Round	60.3 mm OD	3.2 mm	6.0 m	12	4.506 kg/m	324.443 kg
Square	50 × 50 mm	3.0 mm	6.0 m	10	4.427 kg/m	265.644 kg
Rectangular	100 × 50 mm	4.0 mm	7.5 m	8	8.918 kg/m	535.056 kg

These rows are examples only. Actual results depend on your entered size, density, wastage, and quantity.

Formula Used

1) Cross-sectional area

Round tube: Area = π/4 × (OD² − ID²)

Square tube: Area = W² − IW²

Rectangular tube: Area = (W × H) − (IW × IH)

2) Internal dimensions

Inside dimension = outside dimension − 2 × wall thickness. The inside value must stay greater than zero.

3) Volume and weight

Volume per piece = sectional area × piece length

Piece weight = volume × density

Net batch weight = piece weight × quantity

Gross batch weight = net batch weight × (1 + wastage%)

4) Cost estimate

Estimated cost = gross batch weight in kilograms × price per kilogram.

How to Use This Calculator

Select the tube shape: round, square, or rectangular.
Choose a material preset, or enter your own density.
Pick your dimension, length, and output units.
Enter outer dimensions, wall thickness, piece length, and quantity.
Add wastage and optional price per kilogram for procurement planning.
Press Calculate Weight to show results above the form.
Review the chart, summary cards, detailed table, and export buttons.

FAQs

1) What does this calculator estimate?

It estimates steel tube cross-sectional area, weight per meter, weight per foot, single piece weight, batch totals, wastage-adjusted totals, and optional material cost.

2) Can I use inch dimensions?

Yes. Select inches for dimensions and feet for length if your drawings or supplier lists use imperial measurements.

3) Why does density matter?

Density converts tube volume into mass. Different steel families vary slightly, so adjusting density improves weight and cost estimates.

4) Does the tool include wastage?

Yes. Enter a wastage percentage to increase the net batch weight for ordering, cutting, and handling allowances.

5) What happens if wall thickness is too large?

The calculator stops and shows an error because inside dimensions would become zero or negative, which is not physically valid.

6) Can I estimate project purchasing cost?

Yes. Enter a price per kilogram and the calculator multiplies it by the gross batch weight after wastage.

7) Are the results suitable for lifting plans?

They are useful for early planning. Final lifting, rigging, and transport decisions should still be checked against supplier data and site procedures.

8) Can I export the results?

Yes. Use the CSV button for spreadsheet work and the PDF button for printable summaries, reviews, and site sharing.