Troll Depth

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Everyone
1+
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Everyone
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About this app

Troll Depth tells you how much fishing line to let out so your lure runs at the depth you want.

Set a target depth and trolling speed, describe your rig, and Troll Depth calculates the line-out. It also works the other way: change the line-out to see how deep your lure will run. A diagram shows your rig in the water next to the target depth.

BUILD YOUR RIG
• Lines: braid, monofilament, or fluorocarbon, by line test or diameter
• Weights from 1/4 oz to 4 oz, or a custom weight
• Attractors: dodgers, flashers, and lake trolls
• Lure types: spoons, flies, soft baits, and diving plugs
• Rod tip height above the water

MORE FEATURES
• Fresh or salt water
• Imperial or metric units
• Save your favorite setups and load them in one tap
• No account or sign-up needed

COMING SOON
• Automatic speed detection
• Brand-specific lure data
• Lead core and wire line

Depths are estimates. Always check them against your fish finder and your own notes.

Suggestions are welcome: base6.ca
Find how much fishing line to let out to hit your target trolling depth
Updated on
Oct 26, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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Content rating
Everyone
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About the developer
Gregory Taylor
gregtaylor716@gmail.com
5652 Patterson Ave #1406 Burnaby, BC V5H 4C8 Canada