Things You'll Need
Instructions
Make a visual estimate of the height of your target in meters. As an example, an adult human male ranges approximately from 1.67 to 1.9 meters, and a vehicle tire is approximately 0.38 meters.
Determine the height of the target in your scope in terms of the tick marks on the vertical axis of your cross-hairs.
Divide 1,000 by the height in tick marks determined in Step 2.
Multiply the estimated height of your target determined in Step 1 by your result from Step 3 to calculate the approximate distance to the target in meters.