Fly-Fishing Rules of Thumb for Leader Length & Tippet Sizes

The fly-fishing leader length varies based on the fishing conditions, species and fly-fishing style. The tapered leader connects to the fly line with a thick butt section and terminates at a thin diameter. Tippet is added to the leader to adjust the overall length and prevent cutting into the tapered section when flies are changed.

  1. Standard Lengths

    • Standard leaders are sold in 7.5-foot and 9-foot lengths. The standard sizes are common choices and anglers add roughly 2 feet of tippet material to add life to the leader. The 7.5-foot leader is ideal for beginners because tangles are less frequent and casting is easier. The short size works well for small streams and medium-size rivers with dry flies, nymphs and streamers. The 9-foot leader provides extra distance between the fish and the line. The distance reduces the chances of spooking fish and provides extra length for fishing deep water. The 9-foot is a good choice for fishing large rivers and lakes.

    Tippet Size

    • Leaders and tippet are labeled with an "X" system. The number in front of the "X" is relevant to the size, with higher numbers lighter and low numbers heavier. The general rule is to match the size of the tippet with the size of the leader. Large differences in diameter weaken knots and reduce the distribution of energy in a tapered design. Although matching the size is suggested, remaining within two sizes is acceptable.

    Long Leaders

    • Leaders over 9 feet are sold commercially but many anglers add tippet to build length. Longer leaders are more difficult to cast but are often necessary for minimizing presence. The long leader reduces the presence of line and minimizes shadows while casting. Leaders in the 12 feet and greater range are common for spring creek and clear water fishing situations. Long leaders are also used to reach deep sections of lakes with a floating line. The floating line and long leader system creates a vertical presentation that works well for chironomids and mayflies.

    Short Leaders

    • Short leaders are used in conjunction with sinking lines. The short leader is especially common with fast sinking shooting heads. The short leader is a maximum of 7.5 feet with leaders as short as 2 feet. The leaders are not always tapered and are often constructed by tying a heavy piece of tippet directly to the line. The line is responsible for sinking the fly and the short leader reduces tangles. The leader is less important in deep, dark waters because it has low visibility and does not spook fish.