Calculate demurrage (port storage charges) and detention (container equipment charges) based on carrier tariffs and actual or projected dates.
Shipment Details
Demurrage Dates (container at port)
Leave blank if still at port
Detention Dates (container equipment)
Leave blank if not yet returned
Contract Overrides (use your actual figures for precise results)
Benchmark rates are Q1 2026 estimates. If you have your carrier's actual invoice or contract rate, enter it below — it will be used instead of the benchmark.
Demurrage Free Days
Detention Free Days
Actual Demurrage Rate (USD/day)
Actual Detention Rate (USD/day)
↑ Enter your actual rate for invoice verification — this overrides the benchmark entirely