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Borewell Depth Cost Calculator

Work out borewell depth cost instantly with clear inputs, formula shown and shareable results.

About Borewell Depth Cost Calculator

Borewell drilling is priced in slabs because deeper drilling is slower and harder on the bit: a lower rate applies to the first stretch and a higher one beyond it. Casing, cap and accessories are a separate lump sum, so the average cost per metre rises steadily with depth.

Formulas

Drilling cost

Cost = min(depth, 60) x first rate + max(depth - 60, 0) x deeper rate

Total

Total = drilling cost + casing and accessories

Worked example

With the default values below, Borewell Depth Cost Calculator returns Total borewell cost of $90,000.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Total drilling depthminimum 1 m
120 m
Rate for the first 60 metresminimum 0.01 per m
400 per m
Rate beyond 60 metresminimum 0.01 per m
650 per m
Casing and accessoriesminimum 0
27,000

Results

Total borewell cost
$90,000.00
Drilling cost
$63,000.00
Cost of the first 60 metres
$24,000.00
Average cost per metre
$750.00

Step by step

  1. 1Values used
  2. 2Drilling cost
  3. 3Total
  4. 4Total borewell cost= 90,000.00
  5. 5Drilling cost= 63,000.00
  6. 6Cost of the first 60 metres= 24,000.00
  7. 7Average cost per metre= 750.00

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Borewell Depth Cost figure worked out?

Cost = min(depth, 60) x first rate + max(depth - 60, 0) x deeper rate. Borewell drilling is priced in slabs because deeper drilling is slower and harder on the bit: a lower rate applies to the first stretch and a higher one beyond it.

Is a deeper bore always better?

No. Yield depends on which aquifer is intercepted, not on depth alone. Drilling past a productive zone into hard rock adds cost without adding water.

What values do I need to enter?

This calculator takes 4 inputs: Total drilling depth, Rate for the first 60 metres, Rate beyond 60 metres, Casing and accessories. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.

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