Affiliate Disclosure

In accordance with the FTC's guidelines on endorsements and testimonials, this page discloses that FieldsCalc participates in affiliate marketing programs.

What this means

Some links on this site — currently, "Get free quotes" links to Angi — are affiliate links. If you click one and hire a professional through it, we may earn a commission. This comes at no additional cost to you — the price you pay is the same whether you go through our link or find the same service independently.

Where these links appear

Affiliate links currently appear as "Looking for help?" cards on all five calculator pages (wire size, voltage drop, conduit fill, ampacity, and transformer sizing), and within the common wire sizing mistakes, DIY vs licensed electrician, 12 AWG vs 10 AWG wire, and copper vs aluminum wire guides. Each one is labeled inline with a short disclosure ("We may earn a commission if you hire through this link, at no cost to you") at the point of the link itself, not just here.

Our editorial approach

Whether or not a link earns a commission has no bearing on the accuracy of the calculators or the guides on this site — the NEC reference data and formulas are the same regardless. Affiliate relationships fund keeping the tools free; they don't influence the technical content.

Questions

See our Contact page.