Horse Blanket Size Calculator
Find the correct horse blanket or rug size by measuring from chest to tail.
Includes sizing charts for turnout sheets, stable blankets, and coolers.
How to measure a horse for a blanket:
Horse blankets are sized by the distance from the center of the chest (where the blanket buckle sits) to the point of the buttock (where the tail begins). This measurement is taken along the side of the horse in a straight line, not following the curve of the body.
Measurement formula:
Blanket size (inches) = Chest-to-tail measurement
Blanket sizes are sold in even-numbered inches (66, 68, 70, 72, etc.). If your measurement falls on an odd number, round UP for comfort and room to move.
Size chart by horse type (typical):
| Horse Type | Height | Blanket Size |
|---|---|---|
| Small pony | Under 12 hh | 54–60 in |
| Medium pony | 12–13.2 hh | 60–66 in |
| Large pony / small horse | 13.2–15 hh | 66–72 in |
| Average horse | 15–16 hh | 72–78 in |
| Large horse / warmblood | 16–17 hh | 78–84 in |
| Draft horse | 17+ hh | 84–90 in |
Worked example:
You measure your 15.2 hh Thoroughbred from chest to buttock: 76 inches. Round up to 78 inches — that is your blanket size.
Blanket weight guide (fill weight):
- Sheet / no fill (0g): Rain protection only, no warmth. Use in cool, wet weather when the horse has a full winter coat.
- Lightweight (100–150g): Mild cold, clipped horses in autumn
- Medium weight (200–250g): Winter temperatures 20–40°F (-7 to 4°C)
- Heavyweight (300–400g): Extreme cold below 20°F (-7°C) or fully clipped horses
Fit check:
- The blanket should sit just in front of the withers — not riding forward onto the neck
- Two fingers should fit between the chest buckle and the horse
- The tail flap should cover the top of the tail without hanging past it
- Leg straps should have about 2 inches of slack — crossed between the hind legs to prevent shifting