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LeaderCalc

Select the desired specifications for your leader and press "Find leaders" to look up suggestions.

Quick use

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 this new tool here.
Leadercalc currently contains 2768 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.

Randomly selected: Rajeff Trout Fly

Category: Name-Specific Formulas
General trout fly leader designed by Steve Rajeff
NameSectionsTippetLengthLineFormula

3X - 9.5'
Show all variations

63X
0.0080"
9.5'5-7wt.
47" of 0.0240
19" of 0.0220
12" of 0.0180 (06X)
9" of 0.0140 (02X)
6" of 0.0110 (0X)
21" of 0.0080 (3X)

Randomly selected: Stanton Hector's Double Taper

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.
NameSectionsTippetLengthLineFormula

5X - 8.0'
Show all variations

75X
0.0060"
8.0'1-3wt.
11" of 0.0090 (2X)
18" of 0.0140 (02X)
8" of 0.0100 (1X)
11" of 0.0090 (2X)
16" of 0.0080 (3X)
13" of 0.0070 (4X)
19" of 0.0060 (5X)
 

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