Animal Body Condition Score Calculator

Work out animal body condition score instantly with clear inputs, formula shown and shareable results.

About Animal Body Condition Score Calculator

Uses the nine-point body condition scale, where each point above the ideal score of 5 represents roughly 10 percent excess body weight.

Formula

Ideal weight from BCS

Ideal weight = current weight / (1 + (BCS - 5) x percent per point); each point is about 10% of body weight

Worked example

With the default values below, Animal Body Condition Score Calculator returns Estimated ideal weight of 25.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Body condition scoreaccepts 1–9: 7
Current weightaccepts 0.2–200 kg: 30 kg
Weight change per BCS pointaccepts 5–15 %: 10 %

Results

Estimated ideal weight: 25.00 kg
Weight above ideal: 5.00 kg
Percentage over ideal: 20.0%
Condition band: Overweight

Step by step

1Values used
2Ideal weight from BCS
3Estimated ideal weight= 25.00 kg
4Weight above ideal= 5.00 kg
5Percentage over ideal= 20.0
6Condition band= Overweight

Assumptions and limits

The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Is a nine-point or five-point scale used?

Both exist; the nine-point WSAVA scale is the most widely validated, with 4 to 5 as ideal.

How fast should weight loss be?

About 1 to 2% of body weight per week in dogs and 0.5 to 1% in cats.