PMESC Desk

Free days / D&D calculator

See how many free days a container has, and what detention or demurrage costs once it overstays — worked out yourself.

Work it out

Where is it waiting?

DemurrageContainer is at the port or depot DetentionContainer is outside, with you CombinedSome days at the port, then with you

Container How many

Start date Discharge for demurrage; gate-out for detention End date Leave blank to use today

Free days What the carrier allows Currency

Count the start day as day 1Unticked, counting starts the day after — pick whichever matches your carrier's rule.

Carrier tariff

Days are counted from the start; free days are never charged. Example rates — replace with your carrier's

Add the dates, free days and the carrier's tariff. Nothing you type is sent to us.