Pile Capacity Calculator
Calculate the axial load capacity of a pile foundation based on diameter, length, and soil bearing capacity.
How to Use the Pile Capacity Calculator
- Enter the pile diameter in metres.
- Enter the pile length in metres.
- Enter the allowable soil bearing capacity in kPa.
- Click Calculate to get the capacity in kN.
Casi d'Uso
- •Preliminary sizing of driven or bored piles.
- •Checking pile capacity against column loads.
- •Comparing different pile diameters for cost optimisation.
- •Educational use in geotechnical engineering.
Formula
Q = A × q_allowable, where A = π × (d/2)² is the pile tip area and q_allowable is the soil bearing capacity.
Domande Frequenti
What is pile capacity?
Pile capacity is the maximum load a pile can safely carry without excessive settlement or failure.
What units should I use?
Enter diameter and length in metres, soil bearing in kPa. Result is in kilonewtons (kN).
Is this for end-bearing piles only?
This formula estimates tip (end-bearing) capacity. Skin friction adds additional capacity in practice.