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Ship Calculators

Swinging Circle Calculator

Finding your swinging circle given your ship's length and the number of shackles used. — Easily calculate your swinging circle when anchoring.

Arc to Time Converter

Converting Arc in degrees, minutes, and seconds to Time in hours, minutes, and seconds. — Easily convert arc to time with this simple tool.

Time to Arc Converter

Converter of time in hours minutes and seconds to its equivalent Arc in degrees, minutes, and seconds. — Find the arc equivalent of any given time.

Scope & Chain Length Calculator

A converter/ calculator for finding the scope of the anchor, length of chain, and/ or water depth depending on two given values. — Easily calculate your swinging circle when anchoring.