Horse body condition score charts: the UK 0 to 5 scale, the 1 to 9 scale, and how to score your own horse

A horse body condition score chart rates fat cover by look and feel. The British Horse Society uses a 0 to 5 scale, aiming for 2.5 to 3; US guides use Henneke’s 1 to 9, aiming for around 5.

That last sentence is the bit most charts online skip. Search for a body condition score chart and you mostly get the American 1 to 9 version, while your vet, your feed rep and the BHS may well be talking in fives. A “3” means a healthy horse on one scale and a thin one on the other.

This post covers both charts, why they don’t convert neatly, how to score your own horse by hand, the cresty neck score, what to aim for, and what changes in winter.

What is the UK 0 to 5 body condition scale?

It is the fat scoring system the British Horse Society uses, and it comes from a method published by Carroll and Huntington in the Equine Veterinary Journal in 1988. Despite being the “UK scale”, it was developed in Victoria, Australia, on 372 horses, and the authors found it gave repeatable results between people with different levels of experience.

You score three areas from 0 to 5, using half points: the neck and shoulders, the middle (ribs and back), and the hindquarters. This chart summarises the BHS descriptions:

The BHS puts the healthy range for most horses at 2.5 to 3 out of 5, unless your vet advises otherwise. It also notes that fit racehorses and eventers often score 2, which is lean and muscled rather than neglected.

What is the 1 to 9 Henneke scale?

It is the system published by Henneke and colleagues in 1983, who related condition scores in mares to their measured body fat. It is the scale most American guides and most research papers use. Instead of three areas, you judge fat over six: the neck, the withers, behind the shoulder, the ribs, the loin and the tailhead.

This chart summarises the descriptions in the MSD Veterinary Manual:

The MSD chart treats 4 to 6 as acceptable, calls 5 moderate and acceptable for all horses, and counts 7 and above as obese.

Can you convert a 0 to 5 score to the 1 to 9 scale?

Not exactly, and anyone who gives you a clean formula is guessing. The two scales were built separately, on different horses, with different numbers of grades and different descriptions. A 0 to 5 scale with half points has 11 possible scores; a 1 to 9 scale with half points has 17. There is no published, validated conversion.

What you can do is match the descriptions. Read side by side, the two charts line up roughly like this:

Treat that as a translation aid, not a calculator. The practical rule is simpler: pick one scale, write down which one you used next to every score, and stay with it. A 3 written in a notebook with no scale beside it is useless six months later.

How do you body condition score a horse step by step?

Look first, then feel. Both scales describe fat you can see and fat you can feel, and in winter the feel matters more, because a thick coat and a rug hide almost everything.

1. Stand the horse square on level ground. Look from the side, then from behind, then from a step or mounting block above the back.
2. Feel the crest. Run your hand along the top of the neck. Note whether there’s thick, hard fat and whether you can wobble it side to side. The BHS says that at a healthy score there’s no crest and you can feel the ligament running along the neck.
3. Feel behind the shoulder and over the withers. Fat pads here appear early in a horse that is gaining.
4. Feel the ribs. Lay your hand flat and slide it along the barrel. At a healthy score you feel ribs with light pressure but can’t see them. Needing firm pressure means fat; seeing them clearly means thin.
5. Feel along the back and loin. A ridge of spine suggests lean; a gutter you could lay a finger in suggests fat.
6. Look from behind at the hindquarters and tailhead. A smooth curve is healthy. An “M” shape with a gutter down to the tail root is fat. Sharp hip bones and a hollow under the tail are thin.
7. Score each area, then settle on one overall number. Write it down with the date and the scale.

Score with your hands under the rug, not by looking at it. A horse in a medium-weight can look rounded while the ribs underneath tell a different story, and a hairy native can look round when it is simply fluffy. If your horse has a condition such as EMS or Cushing’s, the BHS notes it can be harder to score accurately, so ask your vet to show you.

What is a cresty neck score?

It is a separate 0 to 5 score just for fat along the top of the neck, described by Carter and colleagues in the Veterinary Journal in 2009. They scored 109 horses and ponies and found the neck score was linked to blood markers including insulin, which is why it matters for laminitis-prone horses even when the overall body score looks acceptable.

Based on the descriptions in Baileys’ cresty neck guide:

A score of 3 or more is associated with a higher risk of laminitis. Fat feels softer and spongier than muscle, and stallions and late-gelded horses can carry a big neck that is mostly muscle, so feel rather than judge by outline. If a crest is new or growing, our guide to the early signs of laminitis is worth reading now, not later.

What body condition score should a horse be?

For most horses, 2.5 to 3 out of 5 on the BHS scale, or around 5 out of 9 on the Henneke scale, with 4 to 6 generally acceptable. Ask your vet if your horse sits outside that range or has a medical condition, because the right target can differ.

The reason it matters is laminitis and everything that follows from carrying too much weight. The BHS says excess weight more than doubles the risk of laminitis, and links obesity to equine metabolic syndrome and arthritis. Being too thin carries its own problems, and a horse that is losing condition without explanation always needs a look.

How often should you body condition score your horse?

The BHS suggests every two weeks, with a weigh tape used alongside it so you can see whether your horse is holding, losing or gaining weight. Condition scores move slowly and in half points; a tape picks up the drift between them.

A tape isn’t perfectly accurate, and a weighbridge is better, but the same tape used in the same place at the same time of day shows the direction of travel. Our guide on how to weigh a horse without a weighbridge covers tapes and formulas, and the weight you get is the number you need for how much hay your horse needs.

Should a horse lose weight over winter?

For a horse carrying plenty of condition, a little, yes. Horses evolved to put weight on over summer and lose some over winter. A 2014 study of 96 outdoor horses and ponies in North Somerset, scored on the 1 to 9 scale, found 27.08% were obese at the end of winter and 35.41% at the end of summer. The authors describe that seasonal swing as a “historical winter survival strategy”, and note it appears to shrink as horses become obese.

The BHS makes the same point from the other side: milder winters, rugs and stables mean horses spend less energy keeping warm, so they can gain weight when they would naturally lose it. For a good doer, a slightly leaner spring is helpful going into the grass. Our post on when to rug a horse covers how over-rugging undoes that.

That gentle loss is for horses with condition to spare. An older horse, a horse with poor teeth, or one that started winter at 2 out of 5 is a different case. Losing condition there needs checking, and the winter coat is exactly what hides it until it’s well along. This is the season to score by hand most carefully.

When should you call the vet about body condition?

A score is a record, not a diagnosis. Ring your vet if your horse has:

• Lost condition quickly, over days or a couple of weeks rather than a gentle trend
• Ribs, spine or hip bones newly easy to see, or a score of 1 out of 5 or below
• An older horse losing weight despite eating its usual ration
• Weight loss with other signs: dullness, poor appetite, diarrhoea, or dropping food while chewing (quidding)
• A hard, cresty neck that is new or growing, especially with any history of laminitis
• Any sign of laminitis: reluctance to move, shifting weight, a strong digital pulse

Ring too if your horse sits outside 2.5 to 3 out of 5 and you aren’t sure why, so your vet can confirm the right target. If you’re unsure, that is a reason to call.

Where the technology fits

Stride can help with the trend, not the hands-on score.

• The Body & Condition scan takes a photo of your horse and gives an AI estimate of body condition on the 1 to 9 scale, not the BHS 0 to 5. The model is told to leave the score blank when the photo doesn’t support one, but it is still an estimate from a picture.
• Scans are compared over time. The Genome view shows whether the latest scan’s score is up, down or level against the one before, and that change appears as a body condition signal. A rising score is shown without a verdict, because whether up is good depends on where your horse started.

The limits are plain. A photo cannot feel fat under a winter coat or a rug, and it can’t tell a fluffy cob from a fat one. There is no cresty neck score, no 0 to 5 scale, and no weight field, so a weigh tape reading goes in a note. Use the scan as a prompt to put your hands on the horse, not a replacement for doing it.

If you take one thing from this: next time you score, write the scale next to the number, and do it with your hand under the rug.