Lindy also had a good comment some time ago on the math behind this. There is the quick and dirty cosine x distance. there is also another more accurate formula.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Switchblade</div><div class="ubbcode-body">Angle Cosine Indicator on the scope base works because it gives both...uh oh, wait for it....
Angle AND Cosine
Sniper Tools original one has both then others hijacked and started making them with other options on the wheels </div></div>
Before the days of HH calculators, we used trig tables for conversion.
If you want a table, one can probably download off the internet, or make one in Excel using formulas. Since I had an inclinometer calibrated in degrees, made a table calculating for corrected distance.