Wan Hai Demurrage & Detention Calculator
Recompute Wan Hai D&D invoices: free time, tiered daily rates and per-container totals with an editable tariff.
Set a tier's days to 0 to mean “all remaining days”.
Defaults approximate a common Wan Hai import structure — pull the exact brackets from Wan Hai's published per-country D&D tariff for your trade lane and equipment type.
With your numbers: 11 days − 5 free = 6 chargeable days = 4×$120 + 2×$195 = $870 per container.
Sources & references
- Wan Hai — published demurrage & detention tariff (per country/trade)
- FMC 46 CFR Part 541 billing requirements (US trades)
Demurrage, detention and storage tariffs are set by each carrier, terminal and contract and change frequently. The preloaded figures are editable industry-typical examples, not quotes — always verify against the current published tariff or your service contract before paying or disputing an invoice.
Every Wan Hai import runs two clocks: demurrage while the box sits on terminal, detention after gate-out until the empty returns. Wan Hai is the Taiwanese intra-Asia specialist, with dense short-sea loops linking Asian secondary ports — and its tariff structure reflects that scale. Model either clock here: free days, tier rates, days elapsed.
About Wan Hai Demurrage & Detention Calculator
Worth knowing: Short transits mean free time is a bigger share of total shipment time — a week of D&D can exceed the ocean freight on intra-Asia lanes. The practical move is to capture this context before charges accrue — extension requests citing carrier-side specifics get materially better answers than generic pleas after the invoice. A 11-day dwell under the example tariff totals $870 per container (4 × $120 + 2 × $195). If that number is uncomfortable, the calculator has done its job before the carrier's billing system does its own — the cheapest dispute is the pickup you accelerated instead.
How to use Wan Hai Demurrage & Detention Calculator
- 1Enter days on the d&d clock and how many containers are affected.
- 2Set your free days and edit the tariff tiers to match the published tariff or your contract — every figure is editable.
- 3Read the per-tier breakdown and the worked example showing exactly how the total is built, day by day.
- 4Change the inputs to compare scenarios (pick up now vs later) before the charges harden into an invoice.
Why use Wan Hai Demurrage & Detention Calculator?
- ✓Per-tier breakdown mirrors how carrier and terminal billing systems itemise invoices
- ✓Every figure — free time, tier days, rates — is editable to match any published tariff
- ✓Instant what-if comparisons before charges harden into an invoice
- ✓Free and private — all math runs in your browser
Frequently asked questions
Where do I find Wan Hai's official D&D tariff?+
On Wan Hai's website under demurrage & detention (filed per country and direction, usually with effective dates). Use the document in force on your container's discharge date and the column matching your equipment type — then enter those free days and brackets here to recompute the invoice exactly.
What would 11 days on the clock cost with Wan Hai-typical rates?+
With the preloaded example (5 free days, then $120 for 4d, $195 for 4d, $285 after): 6 chargeable days = 4 × $120 + 2 × $195 = $870 per container. Treat it as a calibration point, not a quote — your filed tariff governs.
Can demurrage really exceed freight on Wan Hai lanes?+
Easily: intra-Asia spot freight for a 20' can run a few hundred dollars while a week of accrued D&D at destination runs more. That inversion changes behaviour — on short lanes, paying premium drayage or off-dock transfer to stop the clock is often rational on day one, not day five. This calculator gives you the break-even.
How do I request a Wan Hai free-time extension?+
Before charges accrue, through your booking contact or the carrier portal, citing the specific cause (vessel delay, exam hold, appointment scarcity) with dates and evidence. Carriers grant documented, cause-specific requests far more readily than post-invoice waiver pleas — by the time it's an invoice, it's a dispute instead.
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Want Wan Hai Demurrage & Detention Calculatoron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/wan-hai-demurrage-detention-calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Wan Hai Demurrage & Detention Calculator — ToolJolt" loading="lazy"></iframe>Related tools
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