One nautical mile is exactly 6.001923244e-14 parsecs, so converting nautical miles to parsecs is a single multiplication. Enter any figure and the result appears as you type — the arithmetic runs in your browser, so nothing is sent anywhere.
The distance at which one astronomical unit subtends one arcsecond: about 3.26 light-years. Exactly 1,852 metres — one minute of latitude, the basis of marine and air navigation.
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". Two tables follow: rounded steps for quick lookup, and a set of real reference quantities converted into parsecs, which is usually more useful than the bare number.
The formula
nautical miles- The amount you are converting, in nautical miles
6.00192324405e-14- The exact number of parsecs in one nautical mile
parsecs- The converted result
How it works, step by step
- Enter the value in nautical miles.
- It is multiplied by 6.00192324405e-14, the exact factor between the two units.
- The answer is shown in parsecs, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
The Eiffel Tower: 0.178 nmi in parsecs
At 0.178 nmi (the eiffel tower), the same quantity in parsecs is 0.178 × 6.00192e-14 = 1.06834e-14 pc. One nautical mile is 6.00192e-14 parsecs, so the numbers shrink as expected.
A marathon: 22.8 nmi in parsecs
Take a marathon, roughly 22.8 nmi. The conversion is a single multiplication — 22.8 × 6.00192e-14 — giving 1.36844e-12 pc. Because the relationship is proportional, doubling the input doubles the answer to 2.73688e-12 pc.
How to read your score
Frequently asked questions
How many parsecs are in one nautical mile?
Exactly 6.00192324405e-14. 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 nautical miles to parsecs?
parsecs = nautical miles × 6.00192324405e-14. Reversed, nautical miles = parsecs ÷ 6.00192324405e-14, which is the same as multiplying by 1.6661326034e+13.
Which is the bigger unit, the nautical mile or the parsec?
The parsec. One nautical mile is only 6.00192e-14 of a parsec, so it takes 1.66613e+13 nautical miles to make one parsec.
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 nautical mile?
Exactly 1,852 metres — one minute of latitude, the basis of marine and air navigation.
What is a parsec?
The distance at which one astronomical unit subtends one arcsecond: about 3.26 light-years.
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.
Nautical Miles to parsecs reference tables
| Nautical Miles | Parsecs |
|---|---|
| 0.5 nmi | 3.00096e-14 pc |
| 1 nmi | 6.00192e-14 pc |
| 2 nmi | 1.20038e-13 pc |
| 3 nmi | 1.80058e-13 pc |
| 5 nmi | 3.00096e-13 pc |
| 10 nmi | 6.00192e-13 pc |
| 20 nmi | 1.20038e-12 pc |
| 25 nmi | 1.50048e-12 pc |
| 50 nmi | 3.00096e-12 pc |
| 75 nmi | 4.50144e-12 pc |
| 100 nmi | 6.00192e-12 pc |
| 250 nmi | 1.50048e-11 pc |
| 500 nmi | 3.00096e-11 pc |
| 1000 nmi | 6.00192e-11 pc |
| 5000 nmi | 3.00096e-10 pc |
Exact factor: 1 nautical mile = 6.00192324405e-14 parsecs.
| Quantity | nmi | pc |
|---|---|---|
| A credit card’s long edge | 4.622e-05 nmi | 2.774e-18 pc |
| A door height | 0.001097 nmi | 6.585e-17 pc |
| An Olympic pool | 0.027 nmi | 1.620e-15 pc |
| The Eiffel Tower | 0.1782 nmi | 1.069e-14 pc |
| A marathon | 22.78 nmi | 1.367e-12 pc |
| Earth’s diameter | 6880 nmi | 4.129e-10 pc |
Published reference values, converted with the same factor this page uses.