From this site

One project, every trade

Each calculator adds its lines to a single estimate — consolidated BOM, schedule and cash-flow included.

Open My Project →

Driveway Snow Melt Cable Calculator

Estimate the length of electric snow-melt heating cable needed for a driveway or walkway.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-25 · v1.0.0

Market
Imperial · sales tax

Heating cable needed

947.22 linear ft of cable

Check your inputs

This estimates cable length only — total electrical load and circuit sizing (often substantial for snow-melt systems) should be checked separately against your specific cable product's watts per foot rating.

Cable length before connection allowance
861.11 linear ft

For the dimensions entered, expect a heating cable needed of 947 linear ft of cable. Note that area to heat sits at the low end of the range this calculator was checked against, so treat the output as indicative rather than settled. Moderate confidence — sound arithmetic, but allow for the variation any real site introduces. Set for United States against IRC 2024. The market selector changes both the units and the code cited.

Estimated cost — your price

This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • Standard radiant cable industry formula: cable length (ft) = area (sq ft) x (12 / cable spacing in inches)

Your workspace

Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.

Frequently asked questions

Do I need to heat the entire driveway?
No — many installations only heat the tire tracks (two strips) or a single walking path, significantly reducing both cable length and the electrical circuit needed, while still solving the main safety/access problem.
How much electricity does a snow-melt system use?
These systems draw substantial power (often 30-50+ watts per sq ft) and typically need a dedicated high-amperage circuit — always confirm your electrical panel has capacity and have an electrician size the circuit before installing.
Does this work the same as radiant floor heating?
The cable-spacing math is the same style of calculation, but outdoor snow-melt cable is rated for burial in concrete/asphalt and driven over, which is a different product than indoor radiant floor PEX tubing or cable.