# Hands to Decimeters (hh to dm)

Source: https://www.unitconvertercalculator.com/length/hands-to-decimeters/

**1 hh = 1.016 dm**

One hand equals approximately 1.016 decimeters. The hand (4 inches / 10.16 cm) and the decimeter (10 cm) are remarkably close in size, differing by only 1.6 mm. This near-equivalence is coincidental, since the hand comes from human palm width and the decimeter from the French metric system.

## Formula

Convert Hands to Decimeters

## Conversion Table

| Hands (hh) | Decimeters (dm) |
|---|---|
| 0.25 hh | 0.254 dm |
| 0.5 hh | 0.508 dm |
| 1 hh | 1.016 dm |
| 2 hh | 2.032 dm |
| 3 hh | 3.048 dm |
| 5 hh | 5.08 dm |
| 10 hh | 10.16 dm |
| 14 hh | 14.224 dm |
| 15 hh | 15.24 dm |
| 16 hh | 16.256 dm |
| 17 hh | 17.272 dm |
| 20 hh | 20.32 dm |
| 50 hh | 50.8 dm |
| 100 hh | 101.6 dm |

## Units

### Hand (hh)

Exactly 4 inches (10.16 cm). The standard unit for measuring the height of horses, measured from the ground to the withers.

### Decimeter (dm)

One tenth of a meter, or 10 centimeters. Used in some European countries for everyday measurements and in education.

## Background

A hand (10.16 cm) and a decimeter (10.00 cm) differ by only 0.16 cm. A 16-hand horse is about 16.256 dm tall. This is one of the closest near-matches between an imperial and metric unit anywhere in the measurement systems. For rough estimation, 1 hand is approximately 1 decimeter.

## Good to Know

The hand (10.16 cm) and decimeter (10.00 cm) are so close that the human palm width and one-tenth of a meter are essentially the same measurement arrived at independently. The French revolutionaries who designed the meter in the 1790s inadvertently matched a unit that had measured horses for millennia.

## FAQ

### How many decimeters is 1 hand?

One hand equals approximately 1.016 decimeters. The two units differ by only 1.6 mm (0.16 cm), making them nearly interchangeable.

### How many hands are in 1 decimeter?

One decimeter equals approximately 0.9843 hands. The decimeter (10 cm) is 1.6 mm shorter than a hand (10.16 cm).

### Is this near-equivalence useful?

For rough estimation only. If someone says a horse is 16 hands, you can think 'about 16 decimeters' and be within 2.6 cm of the true height. But for official equestrian records, the exact conversion matters.

## Non-Frequently Asked Questions

### Is '16 hands' basically the same as '16 decimeters'?

Almost. 16 hands = 162.56 cm = 16.256 dm. Sixteen decimeters = 160.00 cm. The difference is only 2.56 cm (about 1 inch). For rough estimation, hands and decimeters are interchangeable. For official horse registration, they are not. One inch can change a pony into a horse.

### Did the metric system accidentally clone the hand?

The decimeter (10 cm) was defined in the 1790s with no knowledge of the hand unit (10.16 cm). The 0.16 cm difference is pure coincidence. The French measured the Earth; the ancients measured their palms. Both arrived at approximately the same length.

### If a horse is 16.0 decimeters, is it a pony?

Sixteen decimeters = 160 cm = about 15.75 hands. The pony/horse boundary is 14.2 hands (148 cm / 14.8 dm). So a 16-dm horse at 160 cm is solidly a horse, not a pony. But a 14.8-dm equine is right at the boundary. Centimeters and decimeters actually make the distinction cleaner than hands do.

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## See Also

- [Decimeters to Hands](https://www.unitconvertercalculator.com/length/decimeters-to-hands/)