Putting the height next to the shoulder and reading the number
Enter the height from the floor to the shoulder and the height of one step or the sofa, and the tool returns the step as a percentage of the shoulder height. Add the limit you took from your source or your veterinarian and it also reports the gap in percentage points, plus the daily climbing height from the number of trips.
The ratio is the step divided by the shoulder height times 100, and the formula is printed in the result. No official standard puts a number on joint load by height, so this tool invents no threshold: it compares only with the limit you enter and never rates how heavy the load is. Current as of October 2026.
This tool does not predict joint disease; it compares heights. If a patella or spine problem has already been diagnosed, follow your veterinarian regardless of the ratio. A slippery floor increases the load at the same height. This tool is for reference only and does not replace veterinary care. Contact your veterinarian right away if you notice symptoms or suspect a problem.
Frequently asked questions
There is no established figure. Enter the value from the source you are using or the one your veterinarian gave you; the tool compares against that and never sets a threshold on your behalf.
Height alone cannot settle that. Jumping down is understood to load the joints more than climbing up, so start by discussing a ramp on the way down or carrying your pet down.
With all four feet on the floor, measure from the ground to the top of the shoulder blade. Measuring to the head gives a lower ratio and makes the step look easier than it is.