Well Cost per Foot Normalizer

Turn a well quote into an apples-to-apples cost per foot — divide the total you were quoted by the well depth — and turn any $/ft figure back into a total.

Planning estimate: this is a planning estimate from the numbers you enter and standard reference quantities — not a bid or a contract. Get itemized written quotes from licensed contractors and confirm measurements before you commit.

Calculator

$
The bottom-line figure from a quote or a finished job.
ft
Cost per foot$51.50 /ft
Total cost (yours)$10,300.00
Well depth200 ft
Reverse check200 × $51.50 = $10,300.00

$10,300.00 over 200 ft is $51.50/ft. Use it to compare quotes on an apples-to-apples basis — and to turn any $/ft figure back into a total (depth × $/ft). Note some quotes bundle casing and the pump into the per-foot number and some do not.

Well quotes are hard to compare because they mix a per-foot footage rate with fixed items like the pump and the pressure tank. The quickest way to line up two bids is to reduce each to a single cost per foot: total divided by depth. This tool does that, and runs the reverse — depth times a $/ft rate — so you can turn any advertised per-foot number back into a real total.

Formula

Two directions of the same identity:

cost per foot = total cost ÷ depth

total = depth × cost per foot

Both use only your own figures — there is no reference price. Remember that a normalized $/ft is only comparable if the two totals include the same scope.

Worked example

A finished well cost $10,300 and reached 200 ft. The normalized rate is $10,300 ÷ 200 = $51.50/ft. Running it the other way, a 200 ft well at $51.50/ft is back to 200 × $51.50 = $10,300 — the check that proves the division.

Now suppose a competitor advertises “$28/ft.” For the same 200 ft that is only 200 × $28 = $5,600 — far below the finished total, a strong hint that the $28 covers footage only and leaves out the pump, tank, wiring and trenching.

Comparing quotes fairly

The number is only meaningful when the scope matches. A bundled $/ft that already includes the casing, pump and pressure tank will always look higher than a footage-only rate; that does not make it the more expensive job. Before you trust a per-foot comparison, list what each quote includes and exclude the fixed items, or add them to both.

To build a full estimate from scratch instead of normalizing an existing one, use the well drilling cost calculator, which keeps footage and fixed line items separate. This is a planning estimate on your numbers, not a bid.

Frequently asked questions

How do I calculate the cost per foot of a well?
Divide the total cost by the depth in feet. A $10,300 well drilled to 200 ft is $10,300 ÷ 200 = $51.50 per foot. To go the other way, multiply depth by the $/ft rate.
Why do two per-foot quotes differ so much?
Usually because of scope. A footage-only rate covers just the drilling; a bundled rate folds in casing, the pump and sometimes the pressure tank. Always compare like-for-like — strip the fixed items out of both totals, or add them to both, before you divide.
Is a lower cost per foot always the better deal?
No. A low $/ft that excludes casing, the pump and trenching can end up costing more once those are added. Normalize the totals on the same scope, and confirm what each bid actually delivers.
Can I use this to estimate a deeper well?
Yes, as a rough guide: take a known $/ft and multiply by the new depth. It assumes the footage rate holds and ignores that fixed items (pump, tank) do not scale with depth — treat it as an approximation, then get a real quote.