We use the binoculars range calculator with any other binoculars whose reticle is covered in the image. You could also use this scale to calculate the distance between you and an object whose height you know. In the next section, we’ve outlined how you can get such important information. If you have a desire to know and learn more about binoculars we advise you to keep reading.

Binoculars definition

The binoculars consist of two telescopes that are next to each other, and which are looking in the same direction. Binoculars allow the viewer to perceive a three-dimensional image as it uses its two eyes (with a depth of field). Binoculars originally originated in the 17th century and used Galilean optics, which consisted of two lenses: a convex lens and a concave eyepiece lens. To understand more about the importance of lenses in optics, use our thin lens equation calculator or lens-making calculator.

Binoculars distance

Angles are measured in milliradians in the military, which is a thousandth of a radian (0.001 radians, also often called a mil). A milliradian, for example, is the angle at which one meter can be viewed from one kilometer away. The following binoculars distance formula can be used to represent it:

d = h * \frac{1000}{Mil}


  • d is the object’s distance from you,
  • h is the object’s height, and
  • Mil is the object’s angular height in mrad.

To successfully determine the distance to the observed object, use the reticle in binoculars. We will give the following example to simplify what you are talking about here.

If the height of a house h = 9m viewed with binoculars Mil = 1 mrad, the house is d = 9000 m away from you. The height of the item is all you need to know.

Distance measurements

When you are in the field, knowing the distance could help you a lot to identify a location where you will stay on the map or plan your route. At the same time, it is one of those factors that are difficult to measure properly without the use of tools. We can also calculate the distance in several ways, including:

  • Step counting – this is a very simple way. You only need to know the length of your stride. Than you can convert the distance into meters or, if you choose, kilometers.
  • Travel time – this is probably the most intuitive distance measurement technique. It doesn’t matter how far our goal is; what matters is that we will be at the goal in five or ten minutes.
  • Binoculars – using our binoculars range calculator, we have shown you how to achieve this in a very simple way.

How to calculate the distance to the object using Binoculars Range Calculator?

To be able to successfully calculate the distance to a given target, use the formula D = H / K, where D is the distance to the target in kilometers, H is the estimated height of the target in meters, and K is the vertical angle of the target expressed in millimeters. Calculate the distance by first estimating the height (or width) of the target. And then measuring the horizontal (vertical) angle of the target.


What are the binoculars used for?

Binoculars are made, or we can say they were invented to provide upright, suitably aligned vision from left to right. Certainly, they are more comfortable than individual telescopes. Because they allow us to use our eyes naturally, give depth of consciousness and increase visual acuity by providing the human visual system with two sets of data for analysis but also for integration.

What are the applications of binoculars?

Binoculars are highly flexible equipment that magnifies distant objects and is used in a number of situations such as hiking, animal watching, bird watching, hunting, astronomy, golf, various sporting events, and theater. The binoculars are essentially two telescopes mounted on one frame that allow you to use both eyes at the same time.

What is the best range for binoculars?

Here, perhaps the most important thing to emphasize is that each person is different. But generally speaking, users should, in most cases, look for binoculars with a power range of 7x to 10x. For far-reaching observations, theatregoers should choose anything in the range of 3-5x, depending on their seats; sports enthusiasts will be delighted with the 7x model, and big game hunters would require 10x or more of it.