Sonar Cone Coverage at Every Depth

The diameter and area a transducer cone actually covers, which is far less than most people expect.

Every page below is computed rather than written, from the same formulas the matching calculator uses, so a figure on a chart page and the same figure in the calculator cannot disagree. Each one carries its working, the basis of every number it prints, and gear chosen by those numbers rather than from a general list.

How much does a 16 degree sonar cone cover in 5 feet of water? The diameter and area a 16 degree transducer cone covers in 5 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 5 feet of water? The diameter and area a 20 degree transducer cone covers in 5 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 5 feet of water? The diameter and area a 60 degree transducer cone covers in 5 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 8 feet of water? The diameter and area a 16 degree transducer cone covers in 8 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 8 feet of water? The diameter and area a 20 degree transducer cone covers in 8 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 8 feet of water? The diameter and area a 60 degree transducer cone covers in 8 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 10 feet of water? The diameter and area a 16 degree transducer cone covers in 10 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 10 feet of water? The diameter and area a 20 degree transducer cone covers in 10 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 10 feet of water? The diameter and area a 60 degree transducer cone covers in 10 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 12 feet of water? The diameter and area a 16 degree transducer cone covers in 12 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 12 feet of water? The diameter and area a 20 degree transducer cone covers in 12 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 12 feet of water? The diameter and area a 60 degree transducer cone covers in 12 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 15 feet of water? The diameter and area a 16 degree transducer cone covers in 15 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 15 feet of water? The diameter and area a 20 degree transducer cone covers in 15 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 15 feet of water? The diameter and area a 60 degree transducer cone covers in 15 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 20 feet of water? The diameter and area a 16 degree transducer cone covers in 20 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 20 feet of water? The diameter and area a 20 degree transducer cone covers in 20 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 20 feet of water? The diameter and area a 60 degree transducer cone covers in 20 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 25 feet of water? The diameter and area a 16 degree transducer cone covers in 25 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 25 feet of water? The diameter and area a 20 degree transducer cone covers in 25 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 25 feet of water? The diameter and area a 60 degree transducer cone covers in 25 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 30 feet of water? The diameter and area a 16 degree transducer cone covers in 30 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 30 feet of water? The diameter and area a 20 degree transducer cone covers in 30 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 30 feet of water? The diameter and area a 60 degree transducer cone covers in 30 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 40 feet of water? The diameter and area a 16 degree transducer cone covers in 40 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 40 feet of water? The diameter and area a 20 degree transducer cone covers in 40 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 40 feet of water? The diameter and area a 60 degree transducer cone covers in 40 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 50 feet of water? The diameter and area a 16 degree transducer cone covers in 50 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 50 feet of water? The diameter and area a 20 degree transducer cone covers in 50 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 50 feet of water? The diameter and area a 60 degree transducer cone covers in 50 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 60 feet of water? The diameter and area a 16 degree transducer cone covers in 60 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 60 feet of water? The diameter and area a 20 degree transducer cone covers in 60 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 60 feet of water? The diameter and area a 60 degree transducer cone covers in 60 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 80 feet of water? The diameter and area a 16 degree transducer cone covers in 80 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 80 feet of water? The diameter and area a 20 degree transducer cone covers in 80 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 80 feet of water? The diameter and area a 60 degree transducer cone covers in 80 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 16 degree sonar cone cover in 100 feet of water? The diameter and area a 16 degree transducer cone covers in 100 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 20 degree sonar cone cover in 100 feet of water? The diameter and area a 20 degree transducer cone covers in 100 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.
How much does a 60 degree sonar cone cover in 100 feet of water? The diameter and area a 60 degree transducer cone covers in 100 feet of water, with the trigonometry, and how it compares with the other common cone angles at the same depth.

Researched, not professional advice. Every figure on these pages is labelled as a published engineering or manufacturer figure, a rule of thumb, or something that only exists on your own boat. Where a published figure does not exist we say so rather than estimating one. The capacity plate on your boat, the manual for your own equipment and ABYC E-11 for anything electrical are what govern.