LeaderCalc

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Select the desired specifications for your leader and press "Find leaders" to look up suggestions.
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The most advanced and comprehensive fly fishing leader tool online ... well, basically anywhere!

Using the form above you can ask LeaderCalc to caculate and show you a number of fly fishing leader formulas meeting your selected criteria. You can read more about the selection tool here.
LeaderCalc currently contains 2973 leaders for fly fishing, so there are enough to choose from.

Below you see a couple of randomly selected knotted, tapered leader formulas. Click on the name, category or other elements to see more.

Category: Convex & Double Taper Leaders
These ultralight, tapered leaders consist of two sections: leader and tapered tippet. The first four sections can end in a perfection loop, to which the last three are added. Leaders are all tied with Maxima Ultra Green monofilament. You can shorten the three tippet sections for windy conditions.

1 variation, 5X, 8'

Name Sections Tippet Length Line Formula

Stanton Hector's Double Taper


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 7 5X
0.0060"		 8'
(7.0-8.0')		 1-3wt.
11" of 0.0090 (2X) Maxima green
18" of 0.0140 (02X) Maxima green
8" of 0.0100 (1X) Maxima green
11" of 0.0090 (2X) Maxima green
16" of 0.0080 (3X) Maxima green
13" of 0.0070 (4X) Maxima green
19" of 0.0060 (5X) Maxima green
Category: Convex & Double Taper Leaders
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Category: Saltwater
A simple three section leader well suited for Baltic style saltwater. Use a leader at least a rod length, preferably longer where conditions allow it. The leader is well suited for shooting heads and works best with flies in the 8-2 range.

1 variation, 2X, 11.5'

Name Sections Tippet Length Line Formula

Martin's simple Baltic leader


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 3 2X
0.0090"		 11.5'
(9.0-12.0')		 5-7wt.
69" of 0.0150 (03X)
28" of 0.0110 (0X)
41" of 0.0090 (2X)
Category: Saltwater
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Calculating...
Selecting all leaders will show you more than 2,500 leaders. Please narrow your criteria
Selecting All for two or more of your criteria can result in a lot of leaders and can potentially take some time to find. Consider narrowing your search... or just give it a go!

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