Demurrage &
Storage Calculator
Calculate container demurrage, storage and detention charges instantly. Designed for freight forwarders, importers, exporters and logistics professionals.
Professional Logistics Tool
Built for real port & carrier tariffs
Part of AIFlare
One toolkit for global logistics
Trusted by Logistics Professionals
Freight forwarders & shipping lines
The Calculator
Estimate your container costs
Adjust the fields below. Demurrage, storage and detention costs update instantly as you type.
Shipment Details
Moving the arrival date shifts collection & empty return dates with it, keeping the gap between them the same.
Estimated Costs
Live estimateTotal Estimated Cost
$515
5 chargeable days out of 9 days at the terminal
Demurrage
$170
2 days
Storage
$90
2 days
Detention
$255
3 days
Savings Opportunity
Collecting this container 2 days earlier would save approximately $260.
The Signature Feature
Your container's journey, visualized
Watch free time, demurrage and detention unfold across a single timeline that updates as you adjust the calculator.
Free Days
7
Chargeable Days
5
Storage Days
2
Total Cost
$515
Understand the Costs
How charges work
Three distinct charges drive most container cost overruns. Here's what each one means.
Demurrage
Charged by the shipping line when a full container stays inside the port or terminal beyond the agreed free time before it is collected.
Storage
Charged by the port or terminal operator for the physical space your container occupies once its free storage period has expired.
Detention
Charged by the shipping line when a container is collected but not returned empty within the allowed time outside the terminal.
Built For Your Team
Who uses this calculator
A single tool trusted across every part of the shipping chain.
Freight Forwarders
Quote accurate landed costs and avoid surprise charges for clients.
Importers
Plan collection dates to minimize demurrage on inbound shipments.
Exporters
Track free time on outbound containers awaiting vessel loading.
Shipping Companies
Validate tariff calculations before invoicing customers.
Clearing Agents
Advise clients on optimal collection timing during customs clearance.
Transport Companies
Coordinate haulage schedules to avoid detention penalties.
Ready to estimate your container costs?
Get an instant, professional demurrage and storage estimate — free, accurate and built for the way logistics teams actually work.