Disclaimer and Safety Notes
The calculators, converters and finders on HorseCalcs give general information and estimates. They are not veterinary advice and they do not replace your veterinarian, farrier or trainer.
General information only
HorseCalcs explains common guidelines and does the arithmetic for you. Every horse is an individual, and age, health, workload, breed, climate and management all change what is right. A result on this site can be wrong for your horse, so please treat it as a starting point and not as a prescription. Use of this site is at your own risk.
Emergencies and health problems
If your horse shows signs of colic, such as pawing, rolling, looking at the flank or refusing feed, or has a wound, a suspected fracture, choke, a high temperature, difficulty breathing, severe lameness or heat or sun related distress, call your veterinarian immediately. Do not use a calculator or a quiz to decide whether to wait. A foal born early, a mare in difficulty during foaling and any horse with signs of laminitis are also emergencies.
Feed, hay and supplements
The feed, hay and body condition tools use published averages for a typical adult horse. They cannot account for dental problems, metabolic conditions such as insulin resistance or Cushing’s disease (PPID), illness or pregnancy. Change feed gradually, ask your veterinarian before you put a horse with a medical condition on a new diet, and talk to your veterinarian before you add any supplement, even one that looks harmless. Supplements do not replace a diagnosis.
Deworming and medication
The deworming tools reflect current guidance from the American Association of Equine Practitioners, which favors fecal egg count testing and strategic treatment over fixed calendars. Dose, product choice and timing are decisions for your veterinarian, who can run and interpret fecal egg counts and advise on resistance in your area. Never guess a dose.
Breeding
The breeding tools estimate dates and genetic probabilities. They do not tell you whether your mare is a suitable candidate, whether a pairing is wise or what a foal will be worth. Breeding carries real risks for mares and foals and real costs. Please consult a veterinarian who handles reproduction before making any breeding decision.
Fencing, barns and arenas
Fence, shelter, bedding and footing choices affect safety. Never use barbed wire for horses. Horse fence should be visible and tall enough, with nothing that can catch a hoof or a head. Check local codes, zoning and your insurance, and have electrical work, buildings and large earthworks done by qualified people.
Tack, fit and riding
Sizing tools give a starting point, but a proper fit depends on your individual horse and rider. Have a saddle fitted by a qualified fitter, check bits with your veterinarian or equine dentist if there is any sign of mouth discomfort, and check blankets for rubbing. Riding is a risk activity. Wear a properly fitted, approved helmet, ride within your ability and ride with a qualified instructor when you are learning.
Towing and trailering
The towing capacity calculator adds weights, but the numbers that count are the ratings printed on your vehicle, hitch and trailer. Use those exact figures, and remember that a loaded horse trailer can weigh much more than an empty one and that horses move when they travel. If you are in doubt, have your vehicle and trailer checked by a professional before you haul.
Heat and weather
The heat index tool uses a simple rule of thumb. It does not account for direct sun, wind, fitness or acclimation. Horses can overheat quickly, so use common sense, give shade and water and stop work if your horse shows distress.
Prices, quizzes and links
Prices and cost figures are typical examples that vary by region and change over time. The finders and quizzes choose from a short list of options based on a few answers. They cannot see your horse and do not recommend any particular brand or product. Links to other websites are provided for convenience, and we are not responsible for their content. To report an error, use the Report an Issue form. HorseCalcs is independent and not affiliated with any breed association, manufacturer, retailer or veterinary organization.