# Light-years to Hands (ly to hh)

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

**1 ly = 9.3117425911228E+16 hh**

One light-year equals approximately 9.311 x 1016 hands (about 93 quadrillion). The light-year measures interstellar distances; the hand (4 inches / 10.16 cm) measures horse height. No two units could be more unrelated.

## Formula

Convert Light-years to Hands

## Conversion Table

| Light-years (ly) | Hands (hh) |
|---|---|
| 1.0E-16 ly | 9.3117425911228 hh |
| 1.0E-15 ly | 93.117425911228 hh |
| 1.0E-14 ly | 931.17425911228 hh |
| 1.0E-13 ly | 9311.7425911228 hh |
| 1.0E-12 ly | 93117.425911228 hh |
| 1.0E-11 ly | 931174.25911228 hh |
| 1.0E-10 ly | 9311742.5911228 hh |
| 1.0E-9 ly | 93117425.911228 hh |
| 1.0E-8 ly | 931174259.11228 hh |
| 1.0E-7 ly | 9311742591.1228 hh |
| 1.0E-6 ly | 93117425911.228 hh |

## Units

### Light-year (ly)

The distance light travels in one Julian year (365.25 days) in vacuum. Exactly 9,460,730,472,580,800 meters. Used for interstellar distances.

### Hand (hh)

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

## Background

A 16-hand horse is 1.718 x 10-16 light-years tall. Proxima Centauri at 4.24 light-years is about 3.948 x 1017 hands away. Even stacking every horse on Earth would not approach a fraction of a light-year.

## Good to Know

The hand is 5,000 years old. The light-year is 200 years old. One measures horses by touch. The other measures stars by math. Connecting them is like connecting cave paintings to the Hubble telescope: both are human attempts to understand size.

## FAQ

### How many hands are in 1 light-year?

One light-year contains approximately 9.311 x 1016 hands (about 93 quadrillion).

### How many light-years is 1 hand?

One hand equals approximately 1.074 x 10-17 light-years.

### Is this conversion ever used?

Never. Horse height and stellar distances have no practical connection whatsoever.

## Non-Frequently Asked Questions

### How many horses stacked reach 1 light-year?

At 16 hands per horse (1.63 m), you need about 5.82 x 1015 horses (5.8 quadrillion). Earth has about 60 million horses. You would need the horse population of 97 million Earths. Space colonization via horse stacking is not in any space agency's budget.

### If Shadowfax galloped at light-speed, how far in hands per second?

Light-speed is about 2.95 x 1010 hands per second (29.5 billion). At that speed, Shadowfax would cross Middle-earth in about 0.0001 seconds. Gandalf would not even have time to say 'fly, you fools.'

### Is a horse the worst unit for measuring interstellar space?

Arguably yes. The hand (10.16 cm) is one of the smallest common length units. The light-year (9.46 x 1015 m) is one of the largest. Their ratio of 1017 is among the highest conversion factors in practical measurement. The horse has no business in astrophysics.

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## See Also

- [Hands to Light-years](https://www.unitconvertercalculator.com/length/hands-to-light-years/)