To convert picas to angstroms, multiply by 42,333,333.33. That factor is the whole relationship: both units measure length, so the conversion is a proportion with no offset and no substance-specific constant.
One ten-billionth of a metre, sized to atoms: a carbon–carbon bond is about 1.5 Å. Twelve points, or 1/6 inch — the column-width unit of print layout.
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 angstroms, so you can sanity-check whether your answer is a plausible size.
The formula
picas- The amount you are converting, in picas
42,333,333.3333- The exact number of angstroms in one pica
angstroms- The converted result
How it works, step by step
- Enter the value in picas.
- It is multiplied by 42,333,333.3333, the exact factor between the two units.
- The answer is shown in angstroms, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A door height: 480 pica in angstroms
At 480 pica (a door height), the same quantity in angstroms is 480 × 4.23333e+07 = 2.032e+10 Å. One pica is 4.23333e+07 angstroms, so the numbers grow as expected.
A marathon: 9.97e+06 pica in angstroms
A marathon comes to about 9.97e+06 pica. Multiplying by the factor: 9.97e+06 × 4.23333e+07 = 4.22063e+14 Å. Dividing the answer back by 4.23333e+07 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
How to read your score
Frequently asked questions
How many angstroms are in one pica?
Exactly 42,333,333.3333. 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 picas to angstroms?
angstroms = picas × 42,333,333.3333. Reversed, picas = angstroms ÷ 42,333,333.3333, which is the same as multiplying by 2.36220472441e-08.
Which is the bigger unit, the pica or the angstrom?
The pica. One pica equals 4.23333e+07 angstroms.
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 pica?
Twelve points, or 1/6 inch — the column-width unit of print layout.
What is a angstrom?
One ten-billionth of a metre, sized to atoms: a carbon–carbon bond is about 1.5 Å.
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.
Is there a quick way to do pica to Å in my head?
Plenty of people do this in their head: multiply by 42000000.000000 instead of using the exact factor 42,333,333.33. At 100 that shortcut gives 4200000000.000000 angstroms, off by 33333333.333333 angstroms or about 0.79%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Picas to angstroms reference tables
| Picas | Angstroms |
|---|---|
| 0.5 pica | 2.11667e+07 Å |
| 1 pica | 4.23333e+07 Å |
| 2 pica | 8.46667e+07 Å |
| 3 pica | 1.27e+08 Å |
| 5 pica | 2.11667e+08 Å |
| 10 pica | 4.23333e+08 Å |
| 20 pica | 8.46667e+08 Å |
| 25 pica | 1.05833e+09 Å |
| 50 pica | 2.11667e+09 Å |
| 75 pica | 3.175e+09 Å |
| 100 pica | 4.23333e+09 Å |
| 250 pica | 1.05833e+10 Å |
| 500 pica | 2.11667e+10 Å |
| 1000 pica | 4.23333e+10 Å |
| 5000 pica | 2.11667e+11 Å |
Exact factor: 1 pica = 42,333,333.3333 angstroms.
| Quantity | pica | Å |
|---|---|---|
| A credit card’s long edge | 20.22 pica | 8.56e+08 Å |
| A door height | 480 pica | 2.032e+10 Å |
| An Olympic pool | 1.181e+04 pica | 5e+11 Å |
| The Eiffel Tower | 7.795e+04 pica | 3.3e+12 Å |
| A marathon | 9.967e+06 pica | 4.22e+14 Å |
| Earth’s diameter | 3.01e+09 pica | 1.274e+17 Å |
Published reference values, converted with the same factor this page uses.