Anchoring & piloting

Anchor scope

Rode to pay out, based on water depth, bow height above the water, expected tide rise, and scope ratio.

Inputs

Depth at anchor (now)

Bow height above water

Expected tide rise before you leave

Scope ratio

Result

Total depth to account for—

Rode to pay out—

Use the same units throughout (feet or metres). "Total depth" is water depth plus tide rise plus bow height — the full vertical distance the rode must span.