Well Drilling Cost Calculator

By Andrea · August 2026

Use this free calculator to get a rough 2026 planning range for drilling a private water well. Enter your expected depth, well diameter, and drilling difficulty, and choose whether to include a pump and pressure tank. Everything runs in your browser — nothing you enter is sent anywhere or stored.

Estimate Your Well Drilling Cost

Results are estimates only. Well drilling cost depends on how deep the driller has to go, the rock and soil they pass through, casing and grouting requirements, well diameter, permits, and local labor rates. Deeper wells and hard rock raise the per-foot rate, and the pump, pressure tank, electrical hookup, and wellhead add to the total.

What Moves Your Number

Depth is the single biggest driver, because drillers charge per foot. Geology is next: easy soil and sand drill fast, while hard rock or fractured bedrock wears equipment and slows the rig, pushing the per-foot rate up. Larger-diameter wells and heavier casing cost more than a standard 4-inch or 6-inch residential well. Adding a pump and pressure tank typically adds roughly $1,500 to $4,500 installed, depending on depth and household demand. None of these figures are quotes, and no driller can promise hitting water at a specific depth — get written quotes from licensed local contractors and confirm whether the per-foot rate is fixed or subject to upcharge if they hit unexpected rock.