Spike's Calculators


Fence Post Hole Concrete Calculator Using Concrete Mix in Bags

Spike's Calculators

Calculate the amount of concrete needed plus cost for setting fence post using concrete mix in bags

Select your Bag size and enter the price for one bag of concrete mix. Enter the required number of holes needed plus the diameter and depth of the hole in inches. Add the size of the post.

The results are the volume of concrete needed in cubic feet and conversion to cubic yards. The amount of concrete mix bags needed and the cost of these bags.

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
# of Bags Needed: Bags
Total Cost of
Concrete Mix Bags:
Fence Post Hole Concrete Calculator
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