Angle of Depression Calculator

Find the downward angle and line-of-sight distance.

Height

Horizontal distance

Angle of depression (°) 45

Line-of-sight 1.414

Formula: angle = arctan(height ÷ distance)

Step-by-step with your numbers:

1. Values used:

2. Height = 1

3. Horizontal distance = 1

5. Angle of depression = 45°

6. Line-of-sight = 1.414

Did we solve your problem today?

Find how far you have to look down from a height to see a target.

The math behind it

angle of depression = arctan(height ÷ horizontal distance); line-of-sight = √(height² + distance²).

30 ft high, 40 ft away → 36.9° down.

The same as angle of elevation?

Yes — the angle from the target up to the viewer is numerically equal.