Concrete Tools

Concrete Column Calculator

Calculate the exact amount of concrete needed for round, square, and rectangular columns, posts, and pillars. Get cubic yards and cost estimates instantly.

Column Measurements

Calculation Results

Cross-Section Area 0 sq in
Total Concrete 0 cu yd
Volume per Column 0 cu ft
Total Volume (cu ft) 0
80lb Bags Needed 0
Estimated Cost $0 - $0

Common Column Sizes

  • Fence Posts: 8" diameter, 2-3' deep
  • Deck Posts: 10-12" diameter, 4-5' high
  • Building Columns: 12-18" diameter
  • Bridge Piers: 24"+ diameter

Formula

Round: Area = π × r²

Square: Area = Width²

Rectangular: Area = Width × Depth

Volume = Area × Height ÷ 144

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Concrete Column Calculator for Structural Projects

Whether you're building structural columns, fence posts, deck supports, or bridge piers, accurate concrete calculations are essential. This calculator handles round, square, and rectangular columns to give you precise material estimates.

Column Applications

  • Structural Columns: Support beams and building loads
  • Fence Posts: Secure boundary fencing
  • Deck Posts: Elevated deck and patio supports
  • Pergola Posts: Outdoor structure supports
  • Bridge Piers: Heavy-load infrastructure