Estimate the distance to an object using binoculars with a milliradian (mil) reticle.
Observation Data
Distance Estimation
Enter parameters to calculate
About this calculator
Quick Reference
Object SizeHeight or width of known target
MilsSubtension measured in reticle
1 Mil1/1000th of a radian
Overview
Using a reticle with milliradian markings, you can estimate distance if you know the size of the object you are viewing. One mil subtends 1 unit at 1000 units distance.
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Pro Tips
The formula is: Range = (Object Size * 1000) / Mils.
Ensure the object size and range units are consistent (e.g., both in meters or both in yards).
Most hunting and tactical binoculars use Mil or MOA scales.
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Fun Facts
"1 Milliradian is approximately 3.6 inches at 100 yards."
"The 'Mil' in Mil-dot actually refers to Milliradian, not Military."
"Snipers and long-range shooters use this technique to 'range' targets before adjusting their scopes."
