Spike's Calculators


Concrete Calculator for Fence Post Using Concrete Bags

Spike's Calculators

Calculate the amount of concrete needed plus the price for setting fence posts in concrete using concrete bags.

Fence Post Hole Concrete Calculator

Concrete for Fence Post Calculator

Select Bag Size: 40 Lbs
60 Lbs
80 Lbs
90 Lbs
Price per Bag: $
Number of Holes #
Hole Diameter inch
Hole Depth inch
Post Size inch


Cubic Feet of Concrete Needed: ft³
Cubic Yards of Concrete Needed: yd³
Cubic Metres of Concrete Needed
# of Bags Needed: Bags
Total Cost of
Concrete Mix Bags:


  1. select the size of bag you are using
  2. the price of one bag
  3. number of holes
  4. the diameter (or width if square) of the hole in inches
  5. the depth of the hole in inches in inches
  6. the size of the pole ( width for square, diameter for round posts) in inches


  1. cubic feet of concrete needed
  2. cubic yards of concrete needed
  3. cubic metres of concrete needed
  4. number of bags needed
  5. the total price for the concrete bags

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