Sailonline, virtual sailing simulator

kroppyer's tools for sailonline.org

Calculators, converters, guides, links and other stuff

Solfans blogging site for Sailonline fans

Sailonline Performance Calculator

TWA before ° [degrees]
TWA after ° [degrees]
SOG after kts [nm/h]
Performance before % [percent]
Time to next DC (optional) seconds after course change