One nautical mile is exactly 368.2494234 rods, so converting nautical miles to rods 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.
Exactly 1,852 metres — one minute of latitude, the basis of marine and air navigation. Sixteen and a half feet, or a quarter of a chain; it survives in old deeds and fence estimating.
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 rods, which is usually more useful than the bare number.
The formula
nautical miles- The amount you are converting, in nautical miles
368.249423368- The exact number of rods in one nautical mile
rods- The converted result
How it works, step by step
- Enter the value in nautical miles.
- It is multiplied by 368.249423368, the exact factor between the two units.
- The answer is shown in rods, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
An Olympic pool: 0.027 nmi in rods
At 0.027 nmi (an olympic pool), the same quantity in rods is 0.027 × 368.249 = 9.94273 rd. One nautical mile is 368.249 rods, so the numbers grow as expected.
Earth’s diameter: 6880 nmi in rods
At 6880 nmi (earth’s diameter), the same quantity in rods is 6880 × 368.249 = 2.53356e+06 rd. One nautical mile is 368.249 rods, so the numbers grow as expected.
How to read your score
Frequently asked questions
How many rods are in one nautical mile?
Exactly 368.249423368. 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 rods?
rods = nautical miles × 368.249423368. Reversed, nautical miles = rods ÷ 368.249423368, which is the same as multiplying by 0.00271555075594.
Which is the bigger unit, the nautical mile or the rod?
The nautical mile. One nautical mile equals 368.249 rods.
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 rod?
Sixteen and a half feet, or a quarter of a chain; it survives in old deeds and fence estimating.
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 nmi to rd in my head?
Plenty of people do this in their head: multiply by 370 instead of using the exact factor 368.2494234. At 100 that shortcut gives 37,000 rods, off by 175.1 rods or about 0.48%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Nautical Miles to rods reference tables
| Nautical Miles | Rods |
|---|---|
| 0.5 nmi | 184.125 rd |
| 1 nmi | 368.249 rd |
| 2 nmi | 736.499 rd |
| 3 nmi | 1104.75 rd |
| 5 nmi | 1841.25 rd |
| 10 nmi | 3682.49 rd |
| 20 nmi | 7364.99 rd |
| 25 nmi | 9206.24 rd |
| 50 nmi | 18,412.5 rd |
| 75 nmi | 27,618.7 rd |
| 100 nmi | 36,824.9 rd |
| 250 nmi | 92,062.4 rd |
| 500 nmi | 184,125 rd |
| 1000 nmi | 368,249 rd |
| 5000 nmi | 1.84125e+06 rd |
Exact factor: 1 nautical mile = 368.249423368 rods.
| Quantity | nmi | rd |
|---|---|---|
| A credit card’s long edge | 4.622e-05 nmi | 0.01702 rd |
| A door height | 0.001097 nmi | 0.404 rd |
| An Olympic pool | 0.027 nmi | 9.942 rd |
| The Eiffel Tower | 0.1782 nmi | 65.62 rd |
| A marathon | 22.78 nmi | 8390 rd |
| Earth’s diameter | 6880 nmi | 2.534e+06 rd |
Published reference values, converted with the same factor this page uses.