Post Hole Calculator
Calculate hole diameter, depth, and concrete bags needed per hole for fence and deck posts.
Coming Soon
We are building the post hole calculator with accurate formulas and real-world presets. Check back soon.
Construction Calculators
Utility
Square Footage
Area for any shape
Cubic Yard
Volume to cubic yards
Unit Converter
Feet, inches, meters & more
Fraction
Add, subtract & convert fractions
Roof Pitch
Rise, run & rafter angle
Slope / Grade
Rise over run & percentage
Markup / Margin
Price, cost & profit margin
Material Weight
Volume + density = weight
Material Volume
Surface Area
Structural
Stair
Rise, run & angle
Deck Board
Boards, screws & joists
Brick
Bricks & mortar
Concrete Block / CMU
Blocks & mortar per wall
Concrete Footing
Footing volume & rebar
Post Hole
Holes, depth & concrete
Rebar
Bars, weight & spacing
Retaining Wall
Blocks & base material
Lumber
Board feet & cost
Board Foot
Lumber board foot pricing
Roofing
Squares & bundles
Fencing
Posts, rails & pickets