Anchor Holding Power

Expected holding force H = HC × W, where HC is the holding coefficient by bottom type and W is the anchor weight.

MooringAnchoring

Anchor masstHolding coefficient HC - Sand 8–12; hard mud 6–8; soft mud 3–4; gravel 4–6; rock highly variable 1–5.

Anchor weight (gravity): 58.9kN

Expected holding force: 353.2kN

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

H = HC \cdot W

Symbol	Meaning	Unit
$W$	Anchor weight = m·g	kN
$HC$	Holding coefficient
$H$	Holding force	kN

Source: DNV-RP-E301 - Design and Installation of Fluke Anchors

In short

Expected holding force H = HC \u00d7 W, where HC is the holding coefficient by bottom type and W is the anchor weight.

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