To convert microns to picometers, multiply by 1,000,000. That factor is the whole relationship: both units measure length, so the conversion is a proportion with no offset and no substance-specific constant.
The older name for a micrometre, still standard in filtration, machining and paint-thickness specifications. One trillionth of a metre, the SI unit crystallographers use where chemists still reach for angstroms.
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". Below the calculator there is a step table for the values people look up most, and a second table putting real length figures into picometers so the number you get has something to be compared against.
The formula
microns- The amount you are converting, in microns
1,000,000- The exact number of picometers in one micron
picometers- The converted result
How it works, step by step
- Enter the value in microns.
- It is multiplied by 1,000,000, the exact factor between the two units.
- The answer is shown in picometers, 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: 8.56e+04 micron in picometers
At 8.56e+04 micron (a credit card’s long edge), the same quantity in picometers is 8.56e+04 × 1e+06 = 8.56e+10 pm. One micron is 1e+06 picometers, so the numbers grow as expected.
A door height: 2.03e+06 micron in picometers
A door height comes to about 2.03e+06 micron. Multiplying by the factor: 2.03e+06 × 1e+06 = 2.03e+12 pm. Dividing the answer back by 1e+06 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 picometers are in one micron?
Exactly 1,000,000. 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 microns to picometers?
picometers = microns × 1,000,000. Reversed, microns = picometers ÷ 1,000,000, which is the same as multiplying by 1e-06.
Which is the bigger unit, the micron or the picometer?
The micron. One micron equals 1e+06 picometers.
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 micron?
The older name for a micrometre, still standard in filtration, machining and paint-thickness specifications.
What is a picometer?
One trillionth of a metre, the SI unit crystallographers use where chemists still reach for angstroms.
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.
Microns to picometers reference tables
| Microns | Picometers |
|---|---|
| 0.5 micron | 500,000 pm |
| 1 micron | 1e+06 pm |
| 2 micron | 2e+06 pm |
| 3 micron | 3e+06 pm |
| 5 micron | 5e+06 pm |
| 10 micron | 1e+07 pm |
| 20 micron | 2e+07 pm |
| 25 micron | 2.5e+07 pm |
| 50 micron | 5e+07 pm |
| 75 micron | 7.5e+07 pm |
| 100 micron | 1e+08 pm |
| 250 micron | 2.5e+08 pm |
| 500 micron | 5e+08 pm |
| 1000 micron | 1e+09 pm |
| 5000 micron | 5e+09 pm |
Exact factor: 1 micron = 1,000,000 picometers.
| Quantity | micron | pm |
|---|---|---|
| A credit card’s long edge | 8.56e+04 micron | 8.56e+10 pm |
| A door height | 2.032e+06 micron | 2.032e+12 pm |
| An Olympic pool | 5e+07 micron | 5e+13 pm |
| The Eiffel Tower | 3.3e+08 micron | 3.3e+14 pm |
| A marathon | 4.22e+10 micron | 4.220e+16 pm |
| Earth’s diameter | 1.274e+13 micron | 1.274e+19 pm |
Published reference values, converted with the same factor this page uses.