**Depth Calculator**
George's Piefer's Fishing Lure Depth Indicator
sin(90) = 1, so the equation can be rewritten as Depth = Line Out x Sin(line angle). In addition, if you are flatline trolling, you will also need to add the distance from the rod tip to the water level into the equation as so: Depth = (Line Out x Sin(line angle)) - rod distance.

Table 1. Equations for depth calculations.

If your Angle is 5 Multiply Line out by 0.087

If your Angle is 10 Multiply Line out by 0.174

If your Angle is 15 Multiply Line out by 0.259

If your Angle is 20 Multiply Line out by 0.342

If your Angle is 25 Multiply Line out by 0.423

If your Angle is 30 Multiply Line out by 0.5

If your Angle is 35 Multiply Line out by 0.574

If your Angle is 40 Multiply Line out by 0.643

If your Angle is 45 Multiply Line out by 0.707

If your Angle is 50 Multiply Line out by 0.776

If your Angle is 55 Multiply Line out by 0.819

If your Angle is 60 Multiply Line out by 0.866

If your Angle is 65 Multiply Line out by 0.906

If your Angle is 70 Multiply Line out by 0.94

If your Angle is 75 Multiply Line out by 0.966

If your Angle is 80 Multiply Line out by 0.985