Rule of Twelfths Tide Calculator
Rule of Twelfths Tide: a planned Super Calculator tool. Covers tidal range. Stub page: the tool, its formula and a worked example are not published yet.
Rule of Twelfths Tide Calculator is a planned calculator in the transport section of Super Calculator, covering tides.
What this calculator will compute
Inputs: tidal range, high water time and elapsed hours.
Formula, recorded as scope and not yet verified against a primary source: Sixths of the range distributed as 1, 2, 3, 3, 2, 1 across the six hours.
Written for the mental method every day skipper is taught.
Status
This page is a stub. The calculator is not built, no figure on this page has been verified against the authority that sets it, and nothing here should be used to make a decision. The page exists so that the site structure is complete and so that articles can link this concept on first mention.
The stub carries noindex, nofollow and is excluded from the sitemap.