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Concrete Column Calculator

Free concrete column calculator for round columns and piers. Enter the diameter, height, and number of columns to get concrete in cubic yards, cubic feet, bags, and pounds — plus cost and ready-mix truckloads. Every field accepts imperial or metric units, and advanced options cover waste, density, bag prices, and truck capacity.

Column
Units
Concrete Volume0.58 yd³
Bags
26 x 80 lb
Weight
2,333 lb
Loads
1

How to use this calculator

  1. 1. Enter dimensions
    Fill in the required fields for this concrete form.
  2. 2. Click Calculate
    Review volume, bag counts, weight, and ready-mix loads.
  3. 3. Adjust if needed
    Open advanced options for waste, density, prices, and truck capacity.

Common examples

18 in dia × 8 ft column
0.52 yd³ — about 24 bags of 80 lb mix, or 26 with 10% waste.
12 in dia × 4 ft pier
0.12 yd³ — about 6 bags of 80 lb mix.
Four 10 in × 3 ft deck piers
0.24 yd³ total — about 11 bags of 80 lb mix.