Observed arrival · 2026-10-18
StdCalc’s standards-based engineering calculators
A bilingual set of engineering calculators for electrical design review, organized around IEC and KS standards.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Electrical engineers and power-system design reviewers
- Worth noticing
- The homepage lists 10 calculators and six introductory lessons, with building and mechanical sections marked as coming later.
Field notes
The catalog groups electrical calculations by task and cites a standard beside each entry. Descriptions include concrete parameters: cable ampacity accounts for installation methods A1–G and several correction factors, while the motor tool distinguishes direct-on-line, star-delta, autotransformer, and soft-starter starts. Six lessons are listed, including a worked 1,000 kVA substation design example. Building and mechanical sections are marked as coming later.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue