Demurrage & Detention Cost Calculator

Demurrage & Detention Cost Calculator estimates container delay charges using the free days, days used, daily rate, and quantity you enter. Separate demurrage and detention calculations help logistics teams model exposure while a shipment is at the terminal or using carrier equipment.

Carrier and terminal tariffs vary widely and can change. This calculator is a simple planning estimate; confirm the applicable free-time start, calendar, tariff tier, currency, and taxes with the carrier or terminal.

• Separate demurrage and detention: Model terminal and equipment time independently.
• Free-time deduction: Calculate billable days after your allowance.
• Container quantity multiplier: Estimate portfolio exposure across multiple units.
• Currency label: Display results in the currency you use for planning.
• Clear breakdown: See days, rate, containers, and estimated total.

1. Confirm your free days from the bill of lading, contract, or terminal terms.
2. Enter days used and daily rates for each charge type.
3. Enter the number of affected containers.
4. Review billable days and estimated totals, then compare to official tariffs.

Example: Three containers with four billable demurrage days at $150 per container per day produce an estimated $1,800 demurrage charge.

• Forecast risk: Quantify potential delay costs quickly.
• Prioritize action: Focus on shipments with growing free-time exposure.
• Improve communication: Give operations and finance a shared estimate.