Marine Navigation & Weather

How to Calculate Distance, Speed and Time is an independent sailing reference and tools platform that helps recreational sailors understand the fundamental relationship between distance, speed, and time, and apply it to passage planning, seamanship, and safer decision-making. It provides neutral, structured information and practical calculators not tied to any boat brand, school, or equipment manufacturer.

Course vs Heading vs Bearing is an independent sailing reference and tools platform designed to help recreational sailors understand boat systems, learn seamanship, plan safer passages, and make better decisions on the water. It consolidates reliable information from multiple authoritative sources into a structured, cross-referenced format, reducing information overload and conflicting advice. The platform is not tied to any boat brand, school, or equipment manufacturer, and it complements—not replaces—professional training and real-time navigation tools.