Fishing Unit Converters Convert length, weight, casting weight and line diameter. Diameter does not determine a universal breaking strain. MeasurementFish lengthLine diameterFish weightCasting weightValueFromcentimetresinchesmetresfeetTocentimetresinchesmetresfeetConvertEnable JavaScript to use this tool. The guides, source notes and navigation remain available without it. Read the beginner guides. ShareEmailFacebookTwitter