Skip to main content
Calcimator

Fortification Calculator

Calculate material quantities, excavation volume, and labor hours for fighting positions and protective structures.

Inputs

Results

Estimated Completion Time

4.8 hrs

Sandbags Required

2,000

Sandbag Deficit0
Total Excavation24 m³
Total Man-Hours96 hrs
Spoil Weight38.4 tons
How to Use This Calculator
  1. Select position type: Hasty Fighting Position, Deliberate Fighting Position, Machine Gun Position, Vehicle Position, or Command Post.
  2. Enter the number of positions to construct.
  3. Select soil type (Sandy, Loam, or Clay) which affects digging time and material requirements.
  4. Review sandbag count, material weights, and labor hours needed for the position set.
  5. Use these figures to task engineer assets and pre-stage construction materials.

How the result changes with Number of Positions

Number of PositionsEstimated Completion TimeSandbags Required
116.6 hrs2,750
3621.6 hrs9,000
6539 hrs16,250
9054 hrs22,500

What each input means

Position Type
Type of defensive position to construct.
Number of Positions
Number of positions to construct.
Soil Type
Predominant soil type affecting digging difficulty.
Sandbags Available
Number of empty sandbags available.
Personnel Available
Number of personnel available for construction.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Position Type = 1, Number of Positions = 8, Soil Type = 1, Sandbags Available = 2000 = 5 input(s) provided
  2. Calculate Estimated Completion Time
    Estimated Completion Time
    4.8 = 4.8
  3. Calculate Sandbags Required
    Sandbags Required
    2000 = 2000
  4. Calculate Sandbag Deficit
    Sandbag Deficit
    0 = 0
  5. Calculate Total Excavation
    Total Excavation
    24 = 24

Engine last updated . Checked against 2 independently-derived tests how we verify calculators.

The questions that sit next to this one — chosen by subject, including calculators filed under a different category.

More in Military & Defence Planning.