Observed arrival · 2026-09-09
The Boat Mill’s Boat Calculators
A free browser-based suite of roughly 15 calculators for practical boating decisions, from fuel range and battery runtime to anchor rode, dock lines, trailer weight, and bridge clearance.
Field notes
The site groups its calculators by the practical decisions boat owners make: estimating fuel range, sizing battery runtime, selecting anchor rode and dock-line dimensions, checking trailer tongue weight, and calculating winterization or freshwater capacity. Its About copy says each page exposes the underlying formula and assumptions, while the homepage frames the results as planning aids rather than authoritative marine guidance. The linked suite contains about 15 tools and requires no account according to the site’s description.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue