Column Self-Weight Calculator
Enter column width, depth, height, and concrete density to compute concrete volume, self-weight (t), and axial compression (kN), for structural dead load and capacity evaluation.
Input Data
Results
At a glance:Column volume = width × depth × height (m³). Self-weight = volume × concrete density (kg), ÷ 1000 for tonnes. Axial compression (kN) = self-weight (kg) × gravity 9.81 ÷ 1000. This is the axial force from the column's own dead load; floor-transmitted loads must be added in design.
Formula
Volume = width × depth × height
Self-weight (kg) = volume × density
Axial load (kN) = self-weight × 9.81 / 1000
$$V = b d h$$$$W = V\rho$$$$N = \frac{W\times 9.81}{1000}$$How to Use
- Enter the column width, depth, and height (m).
- Confirm the concrete density.
- The system outputs volume, self-weight, and axial compression.
Case Studies
Floor square column
0.4×0.4m, height 3m, density 2,400.
Volume 0.48m³; self-weight 1.15 t; axial load 11.3kN.
Basement large column
0.8×0.8m, height 4m, density 2,500.
Volume 2.56m³; self-weight 6.4 t; axial load 62.8kN.
FAQ
How does axial load differ from line load?
A column is a point-like member whose self-weight gives a concentrated axial force (kN); beams and walls are linear and produce a line load (kN/m).
Should floor loads be added?
Yes. A column carries the accumulated load of all floors above it; this calculator counts only the column's own weight.
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References
Content review: Calculatorism Construction Team. Results are for reference only; please refer to the relevant authorities for the official figures.