The demurrage calculator computes laytime, demurrage and dispatch from the charter-party terms. It supports standard proformas and laytime rules. Free.
What you enter
- Fixture — vessel, CP number and date.
- CP & rules — form (Gencon 94, Asbatankvoy, Shellvoy 6, BPVoy 5, Norgrain 89, Synacomex, AmWelsh), time type (WWD, SHEX, SHINC…), mode (separate / reversible / averaged), clauses (WIBON, WIPON, once on demurrage always on demurrage), dispatch basis, time-bar.
- Ports & NOR — notice tendering, load/discharge.
- Events — NOR, cargo operations, weather.
- Rates — demurrage and dispatch.
How to calculate
- Fill the fixture and pick the CP form with its laytime rules.
- Add ports, NOR tendering time and events (these can be parsed from an SOF automatically).
- Get laytime, demurrage and dispatch.
"SOF recognition" reads the Statement of Facts and fills in the events — less manual entry.
See also