Weight of a Horse

Not Reviewed
Equation / Last modified by KurtHeckman on 2017/12/19 14:50
equineSarah.Weight of a Horse

The Weight of a Horse calculator computes the weight (W) of a horse based on the measurement of the horse's girth (G) and a chest to tail measurement (CTM).Teka.png

INSTRUCTIONS: Choose units and enter the following:

  • (G) This is the horse's girth
  • (CTM) This is the horse's chest to tail measurement

Horse Weight(W): The calculator returns the weight in pounds (lbs). However, this can be automatically converted to compatible units via the pull-down menu.

The Math / Science

How much does a horse weigh?  Unless you have very large scales, one must make an estimation.  A very common formula for the weight estimate of a horse is a function of the length around the girth, and the length from the chest to the tail.  This is used to make a rough estimate of the volume of horse flesh (skin, muscle, bone, fluids) and applies that to estimate the weight.

This calculation replaces the need for a horse weight tape.  The formula used in this Horse Weight calculator is:

`W = (G^2 * CMT) /12000`


  • W is the weight of the horse in Kilograms
  • G is the length of the girth in centimeters
  • CMT is the chest to tail measurement in centimeters.

The calculator makes the conversions from inches to centimeters and kilograms to pounds automatically.