Free tool · goes with the book
Cruising budget calculator
A quick monthly estimate checked against the reference ranges in Chapter Three of So You Think You Want to Sail the World?, with the 20 percent reserve built in. Everything is calculated in your browser. For the full worksheet, power and water, and the readiness checklists, use the Readiness Dashboard.
Ranges are approximate 2026 U.S.-dollar planning figures for running the boat (insurance, routine maintenance, provisioning, moorage, a repair reserve). They're not a guarantee. Build your own number from real quotes.