Binoculars Range Calculator

Your details

Choose what you want to calculate.
The known real-world height of the object you are observing.
m
The number of mils (milliradians) the object spans on your reticle scale.
mrad
Distance to object
1,750

Estimated range based on object height and reticle reading

Distance (km)1.75
Angular size1mrad
Angular size (degrees)0.0573deg

Estimated range: 1750.0 m

  • With a reticle reading of 1 mrad and an object height of 1.75 m, the object is about 1750.0 m away.
  • In the mil shortcut, distance (m) = height (m) x 1000 / mils, making mrad the natural unit for range estimation.
  • At that range, even small reticle-reading errors matter: a 0.1 mrad misread changes the result by about 175 m.

Next stepFor best accuracy, use a stable rest for your binoculars and average 2-3 independent reticle readings.

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