Rocna Anchor Selector

Choosing the right Rocna Anchor for your boat is crucial for several reasons.

Holding Power

An anchor’s primary purpose is to hold your boat in place. An anchor that is too small for your boat may not provide enough holding power to keep your vessel securely anchored, which can lead to drifting.


Using an undersized anchor can compromise your boat’s safety. In adverse weather conditions or strong currents, a small anchor may not be able to maintain a secure hold, putting your boat at risk of drifting.

Peace of Mind

Knowing that you have the right size anchor for your boat can give you peace of mind while anchoring. It can help you feel confident that your vessel will stay put, allowing you to relax and enjoy your time on the water.


Using an appropriately sized anchor makes anchoring and retrieving the anchor more efficient. If your anchor is too small, you may need to set it multiple times, which can be time-consuming and frustrating.


To determine the right size anchor for your boat, consider factors such as the size and weight of your boat, the type of seabed you’ll be anchoring in, and the prevailing weather conditions in your area.

Metric Imperial

Choose your boat type





Commercial vessel

Fishing boat

Choose your seabed types

Soft Mud

Hard Sand



Choose your water conditions

Exposed Anchorage

Protected Anchorage

Strong Currents

Shifting Tides

Shallow Water

Deep Water

Vessel Information

Standard Roller/Open Design

Bow Pulpit/Bow Sprit/Closed Design

Please note: the descriptions and guidelines shown on this page should be used as a general reference only. For any further technical information, please contact our Technical Services team. Product specifications are subject to change without notice.

Visit our Rocna Anchors Sizing Guide to view this information in table format.

Your Recommended Rocna Anchor

Rocna Original

(link to pattern download)

Designed to set quickly in all types of seabeds, the unique geometry of Rocna anchors enables them to orient themselves for fast penetration, regardless of how they hit the bottom. They combine a chisel tip, roll-bar and skids to dig in straight and bury rapidly, typically within one meter, even in thick weed and kelp.

Rocna Mk II

(link to pattern download)

An idealized form of the Rocna design, the Mk II refines every element close to perfection. Upgrades in performance and strength build on the original’s pedigree of dependability. For ultimate performance and safety, the Rocna Mk II is the world’s premier anchoring investment.

Your Recommended Rocna Anchor


(link to pattern download)

Choose the Vulcan for a snug fit on the bow of any boat, including those with platforms and bowsprits, for vessels from small runabouts to large yachts and powerboats. Unique shank and fluke geometry combine with an innovative roll-palm™ to self-right the anchor on the seabed.

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