Free electrical calculators for contractors
About BuildWire Calc
Free web (and Mac/Android) electrical calculators for contractors — wire sizing, loads, and field math.
PlatformsWeb, Android, macOS
Key features
- Wire sizing
- Load calculations
- Field math
🏷️ Get an embeddable badge for BuildWire Calc
Show it off on your own site — updates automatically, links back here.
Reviews
No reviews yet — be the first to share your experience.
Similar tools
Serman Tools
Free browser calculators for job pricing, true costs and small-operator planning
Free Trade Tools
Free calculators for contractors & home buyers
SolveTutor
Calculators, to the decimal
ToolsNow
111 privacy-first browser tools — no uploads, accounts or limits.
W9Link
Collect W-9s with a shareable link — $29/tax year
FiberTools
Free calculators for knitting, crochet, weaving and spinning