Demurrage & Detention Calculator | Port Storage Fees
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Demurrage & Detention Calculator
Calculate demurrage (port storage) and detention (container usage) charges for your shipment.
Understanding Demurrage & Detention
How D&D charges work in Australia
- Chargeable days = max(0, actual days − free time). Tiers (e.g. days 1–5, 6–10, 11+) escalate the daily rate — the deeper you go, the more it costs.
- Demurrage is charged by the terminal/port (e.g. DP World, Patrick, VICT). Detention is charged by the shipping line (e.g. Maersk, COSCO, ONE).
- Free time at major AU ports is typically 3–7 days for import demurrage and 7–14 days for detention — always confirm in your B/L or carrier contract.
- ⚠ Reefer / hazardous / OOG (out-of-gauge) containers have shorter free time and higher daily rates — sometimes 3–5× standard.
- ⚠ Biosecurity (DAFF) holds and customs inspections do NOT pause D&D — the clock keeps running. Pre-clearance helps.
- Combined “merchant haulage” / “carrier haulage” arrangements can shift detention liability — check who’s responsible at each leg.
Estimates only — final pricing depends on actual cargo, route, season, and carrier capacity. Get a binding quote before committing.
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Demurrage & Detention Calculator
Estimate demurrage and detention fees based on container type, free time, and actual days at port.
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