Observed arrival · 2026-10-01
SizeBench: technical calculators that show their work
A directory of technical calculators for tasks ranging from wire sizing and solar batteries to boat systems, EV charging, and 3D printing.
- For
- People sizing electrical, solar, marine, and home systems
- Worth noticing
- The catalog includes specialist entries such as anchor scope, propeller slip, camera storage, and 555-timer calculations.
Field notes
The directory is organized into ten labeled categories and includes 290 links, with English, Portuguese, Spanish, and German options visible. Its catalog ranges from standard conversions and AC sizing to less routine entries such as hull speed, anchor scope, 555-timer calculations, and miniature-scale resizing. The homepage says answers include formulas and code references; the supplied extract does not show individual calculator screens or let us verify their calculations.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue