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Free Helical Pile Tools & Calculators

Calculators and reference charts for homeowners, contractors and engineers: cost, pier count and spacing, torque to capacity and unit conversion.

HomeownersHelical pile cost calculatorInstalled cost for decks, additions, new homes, repairs and commercial jobs.Open tool →Homeowners · ContractorsHow many helical piers do I need?Pier count and spacing for repairs, decks and engineered wall loads.Open tool →Engineers · InstallersTorque to capacity calculatorAC358 Kt factors: capacity from torque, or torque for a design load.Open tool →EveryoneSize converter (in to mm)Shaft and helix sizes, torque and load units.Open tool →

Reference library

Charts, code references and directories the tools are built on. Every figure on these pages links to its source.

Why these tools are free

Helical Pile USA is an independent directory of helical pile installers, manufacturers and suppliers across the U.S. and Canada. The tools are paid for by advertising from companies in the industry, never by the people using them. Results are planning estimates; a licensed engineer and installer set the final design.

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Frequently asked questions

Are the calculators free?

Yes. All tools are free to use with no sign-up. They are supported by advertising from industry companies.

Can I use the results for a permit?

No. The tools give planning estimates. Permits need a design from a licensed engineer or the installer, backed by an evaluation report or load tests.

Where do the numbers come from?

From published prices, ICC-ES AC358, the IBC and IRC, and manufacturer technical documents. Each tool lists its sources.

Sources

  1. ICC-ES AC358 acceptance criteria
  2. IBC helical pile provisions (UpCodes)
  3. HomeGuide: Helical piers cost

Related guides and tools

What is a helical pile?Start hereHelical pier cost2026 pricesHow to hire a contractorQuestions to askAll guides30+ guides

Last reviewed October 2026 by the Helical Pile USA editorial team. Estimates are for planning only; a licensed engineer or installer sets the final design. Found an error? Tell us.

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© 2026 Helical Pile USA. An independent directory of helical pile installers, manufacturers, and distributors in the United States and Canada. Listings are provided for information only and are not endorsements; always verify licensing, insurance, and engineering requirements with the company and your local building department.