Dry-docking Cost & Frequency

Lifetime cost of dry-docking cycles from the interval, per-docking cost, hull-coating life and trading-certificate renewal schedule. Feeds retrofit-payback and newbuild-vs-refit comparisons.

LifecycleEconomic

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

N = \lfloor \text{Horizon} / \text{Interval} \rfloor, \quad \text{Cost}_i = C_\text{dock} + d_\text{off} \cdot R_\text{day}

Symbol	Meaning	Unit
$Horizon$	Asset lifetime	years
$Interval$	Docking cycle length	years
$N$	Number of dockings
$C_\text{dock}$	Shipyard cost per docking	USD
$d_\text{off}$	Off-hire days per docking	d
$R_\text{day}$	Day rate when trading	USD / d
$r$	Discount rate	fraction

Source: IACS - PR 1 Survey Arrangement Requirements; Stopford - *Maritime Economics*

In short

Lifetime dry-docking cost and present value from docking interval, cost per dock and off-hire days.

Learn the theory Ship Finance and Asset Valuation