Estimate a horse's weight from heart girth and body length.
The classic tape formula squares the heart girth and multiplies by body length, then divides by 330 for pounds. Feed and drug doses scale with weight, so an estimate without a scale keeps medication and rations in the right range.
Horse Weight
Weight (lb) = girth^2 x length / 330
Weight (lb) = girth^2 x length / 330 The classic tape formula squares the heart girth and multiplies by body length, then divides by 330 for pounds.
Feed and drug doses scale with weight, so an estimate without a scale keeps medication and rations in the right range.
This calculator takes 2 inputs: Heart girth, Body length (point of shoulder to point of buttock). The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.