This page converts mils into hands using the factor 0.00025, and shows the reverse figure alongside it. Both units measure length, which is why one number does the whole job.
Exactly four inches, and still the only accepted way to state the height of a horse. One thousandth of an inch, the standard thickness unit for plastic film and PCB traces.
The mil and the millimetre are not the same thing and are out by a factor of about forty. A mil is one thousandth of an inch — 0.0254 mm — and a spec sheet that quotes film thickness in mils means the small unit. British drawings write the same size as "thou". The tables underneath give both a plain step-by-step lookup and a list of real quantities expressed in hands, so you can sanity-check whether your answer is a plausible size.
The formula
mils- The amount you are converting, in mils
0.00025- The exact number of hands in one mil
hands- The converted result
How it works, step by step
- Enter the value in mils.
- It is multiplied by 0.00025, the exact factor between the two units.
- The answer is shown in hands, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A credit card’s long edge: 3370 mil in hands
Take a credit card’s long edge, roughly 3370 mil. The conversion is a single multiplication — 3370 × 0.00025 — giving 0.8425 hh. Because the relationship is proportional, doubling the input doubles the answer to 1.685 hh.
A door height: 8e+04 mil in hands
Take a door height, roughly 8e+04 mil. The conversion is a single multiplication — 8e+04 × 0.00025 — giving 20 hh. Because the relationship is proportional, doubling the input doubles the answer to 40 hh.
How to read your score
Frequently asked questions
How many hands are in one mil?
Exactly 0.00025. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert mils to hands?
hands = mils × 0.00025. Reversed, mils = hands ÷ 0.00025, which is the same as multiplying by 4000.
Which is the bigger unit, the mil or the hand?
The hand. One mil is only 0.00025 of a hand, so it takes 4000 mils to make one hand.
What does this quantity actually measure?
Both units measure length. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a mil?
One thousandth of an inch, the standard thickness unit for plastic film and PCB traces.
What is a hand?
Exactly four inches, and still the only accepted way to state the height of a horse.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Mils to hands reference tables
| Mils | Hands |
|---|---|
| 0.5 mil | 0.000125 hh |
| 1 mil | 0.00025 hh |
| 2 mil | 0.0005 hh |
| 3 mil | 0.00075 hh |
| 5 mil | 0.00125 hh |
| 10 mil | 0.0025 hh |
| 20 mil | 0.005 hh |
| 25 mil | 0.00625 hh |
| 50 mil | 0.0125 hh |
| 75 mil | 0.01875 hh |
| 100 mil | 0.025 hh |
| 250 mil | 0.0625 hh |
| 500 mil | 0.125 hh |
| 1000 mil | 0.25 hh |
| 5000 mil | 1.25 hh |
Exact factor: 1 mil = 0.00025 hands.
| Quantity | mil | hh |
|---|---|---|
| A credit card’s long edge | 3370 mil | 0.8425 hh |
| A door height | 8e+04 mil | 20 hh |
| An Olympic pool | 1.969e+06 mil | 492.1 hh |
| The Eiffel Tower | 1.299e+07 mil | 3248 hh |
| A marathon | 1.661e+09 mil | 4.153e+05 hh |
| Earth’s diameter | 5.017e+11 mil | 1.254e+08 hh |
Published reference values, converted with the same factor this page uses.