Nautical miles Converter
Convert Nautical miles (nmi) to any other length unit. The table below gives the exact figure for each unit, and every conversion is worked from the same engine as the converter.
What nautical miles convert to
One nmi in every other length unit.
| Unit | 1 nmi | Reverse |
|---|---|---|
| Millimeters | 1,852,000 mm | 5.3996e-7 nmi |
| Centimeters | 185,200 cm | 5.3996e-6 nmi |
| Meters | 1,852 m | 5.3996e-4 nmi |
| Kilometers | 1.852 km | 0.539957 nmi |
| Inches | 72,913.385827 in | 1.3715e-5 nmi |
| Feet | 6,076.115486 ft | 1.6458e-4 nmi |
| Yards | 2,025.371829 yd | 4.9374e-4 nmi |
| Miles | 1.150779 mi | 0.868976 nmi |
Multiply a nautical miles figure by the figure in the second column to get the unit in the first, or multiply by the third column to go the other way.
Nautical miles conversion reference
Nautical miles to Millimeters
One nautical miles is 1,852,000 millimeters, and one millimeters is 5.3996e-7 nautical miles.
A millimeter is one thousandth of a meter. It is the unit for precision work — engineering tolerances, rainfall, wire gauges and the thickness of paper or sheet metal.
- 1 nmi= 1,852,000 mm
- 5 nmi= 9,260,000 mm
- 10 nmi= 18,520,000 mm
Nautical miles to Centimeters
One nautical miles is 185,200 centimeters, and one centimeters is 5.3996e-6 nautical miles.
A centimeter is one hundredth of a meter. It is the everyday metric unit for short distances: body measurements, clothing sizes, furniture and school rulers.
- 1 nmi= 185,200 cm
- 5 nmi= 926,000 cm
- 10 nmi= 1,852,000 cm
The centimeter is exactly one hundredth of a meter, written 0.01 m, and it is the unit most metric rulers and tape measures are marked in, with ten millimeters to one centimeter.
It appears on clothing labels, school rulers, rainfall reports and body measurements, and in medicine for wound sizes. A person's height is commonly recorded in centimeters on metric forms.
Nautical miles to Meters
One nautical miles is 1,852 meters, and one meters is 5.3996e-4 nautical miles.
The meter is the SI base unit of length, defined as the distance light travels in a vacuum in 1/299,792,458 of a second. It is used for room sizes, heights, fabric and track distances.
- 1 nmi= 1,852 m
- 5 nmi= 9,260 m
- 10 nmi= 18,520 m
The meter is the base unit of length in the International System, defined by the distance light travels in a vacuum in 1/299,792,458 of a second.
It measures room dimensions, fabric sold by the metre, athletic tracks, water depth and building heights. Scientific work uses meters and its decimal multiples, from nanometers to gigameters, almost everywhere outside everyday imperial trade.
Nautical miles to Kilometers
One nautical miles is 1.852 kilometers, and one kilometers is 0.539957 nautical miles.
A kilometer is 1,000 meters. It is the standard unit for road distances and speed limits, and the one used on road signs and by police across Tanzania and most of the world.
- 1 nmi= 1.852 km
- 5 nmi= 9.26 km
- 10 nmi= 18.52 km
The kilometer is exactly 1,000 meters, the unit of length in the International System used for distances between places rather than across a room. It is written km and is the basis of the metric road network.
Road signs, speed limits, odometers and race distances use kilometers in most of the world. Maps quote distances in kilometers, and athletic events such as the marathon are described in kilometers.
Nautical miles to Inches
One nautical miles is 72,913.385827 inches, and one inches is 1.3715e-5 nautical miles.
An inch is exactly 2.54 centimeters. It remains the standard unit for screen sizes, pipe and hose diameters, and tool sizes in imperial-measure countries.
- 1 nmi= 72,913.385827 in
- 5 nmi= 364,566.929134 in
- 10 nmi= 729,133.858268 in
An inch is exactly 2.54 centimeters, or 25.4 millimeters. Twelve inches make one foot and thirty-six make a yard, so the inch sits inside two larger imperial units.
Screen and tyre sizes are given in inches, as are pipe and hose diameters, wrench openings and the diagonal of a television. Rainfall is still recorded in inches in some countries.
Nautical miles to Feet
One nautical miles is 6,076.115486 feet, and one feet is 1.6458e-4 nautical miles.
A foot is exactly 0.3048 meters, or 12 inches. It is used for height, altitude in aviation and room dimensions wherever imperial measurements are standard.
- 1 nmi= 6,076.115486 ft
- 5 nmi= 30,380.577428 ft
- 10 nmi= 60,761.154856 ft
The foot is exactly 0.3048 meters, or twelve inches. United States survey work has used a separate survey foot, defined as 1200/3937 meters and equal to about 0.3048006 meters.
Aviation uses feet for altitude and flight levels worldwide, even in countries that measure road distance in kilometers. Building heights, room dimensions, timber and, in some places, body height are also quoted in feet.
Nautical miles to Yards
One nautical miles is 2,025.371829 yards, and one yards is 4.9374e-4 nautical miles.
A yard is exactly 0.9144 meters, or 3 feet. It is the unit for fabric and carpet sales, and for sports distances such as the 22-yard cricket pitch.
- 1 nmi= 2,025.371829 yd
- 5 nmi= 10,126.859143 yd
- 10 nmi= 20,253.718285 yd
The yard is exactly 0.9144 meters, three feet or thirty-six inches. It is a defined multiple of the meter, not an independent standard. Its value was fixed by the same international agreement that defined the foot and the inch.
Fabric, carpet and some flooring are still sold by the yard, and the chain and furlong used in land and horse racing are built from yards. American football is measured in yards.
Nautical miles to Miles
One nautical miles is 1.150779 miles, and one miles is 0.868976 nautical miles.
A mile is exactly 1,609.344 meters, or about 1.609 kilometers. It is the standard road-distance unit in the United States and the United Kingdom.
- 1 nmi= 1.150779 mi
- 5 nmi= 5.753897 mi
- 10 nmi= 11.507794 mi
The international mile is exactly 1,609.344 meters, or 1.609344 kilometers. It descends from the Roman mile of a thousand paces and remains the standard road distance in the United States and the United Kingdom.
Road signs and speed limits, distance markers on highways, running and cycling events and aviation track distances are quoted in miles in those countries. Nautical miles are separate and longer.
What nautical miles are used for
A nautical mile is exactly 1,852 meters — one minute of latitude. It is the standard unit for maritime and air navigation, which is why ship and aircraft speeds are given in knots per hour.
Metric-to-metric conversions are exact. Imperial figures are exact by definition but are rounded for display, so a value converted back and forth can differ in the final digit.
Inside the metric units every length conversion is a shift of the decimal point, so millimeters to centimeters, meters to kilometers and the rest can be done by moving it. Which way, and how far, follows from the prefix alone.
Converting between metric and imperial is not a shift but a single exact multiplication, and the factor is the same one for that pair however large or small the value. The trap is mixing the two systems halfway, as when a distance is stated in meters and inches in the same sentence.
To check a length conversion, run it backwards, or convert through a familiar middle value such as a meter or a foot. The one thing to keep straight is pairs that differ by a thousand rather than by ten, since those are where a misplaced decimal point survives unnoticed.
Tanzania reference points
Real quantities, converted into nautical miles.
Uhuru Peak on Mount Kilimanjaro, the highest point in Africa
5,895 m = 3.183045 nmi
The datasheet also records Kilimanjaro as rising 4,877 m above the surrounding plains.
Source: UNEP-WCMC World Heritage datasheet — Kilimanjaro National Park · verified 2026-09-14
Marangu Gate, the main road entrance to Kilimanjaro National Park
1,830 m = 0.988121 nmi
Source: UNEP-WCMC World Heritage datasheet — Kilimanjaro National Park · verified 2026-09-14
How far Mount Kilimanjaro rises above the plains around it
4,877 m = 2.633369 nmi
Source: UNEP-WCMC World Heritage datasheet — Kilimanjaro National Park · verified 2026-09-14
Nautical miles conversion tables
Nautical miles to Millimeters
| Nautical miles (nmi) | Millimeters (mm) |
|---|---|
| 1 | 1,852,000 |
| 2 | 3,704,000 |
| 3 | 5,556,000 |
| 4 | 7,408,000 |
| 5 | 9,260,000 |
| 10 | 18,520,000 |
| 25 | 46,300,000 |
| 50 | 92,600,000 |
| 100 | 185,200,000 |
Nautical miles to Centimeters
| Nautical miles (nmi) | Centimeters (cm) |
|---|---|
| 1 | 185,200 |
| 2 | 370,400 |
| 3 | 555,600 |
| 4 | 740,800 |
| 5 | 926,000 |
| 10 | 1,852,000 |
| 25 | 4,630,000 |
| 50 | 9,260,000 |
| 100 | 18,520,000 |
Nautical miles to Meters
| Nautical miles (nmi) | Meters (m) |
|---|---|
| 1 | 1,852 |
| 2 | 3,704 |
| 3 | 5,556 |
| 4 | 7,408 |
| 5 | 9,260 |
| 10 | 18,520 |
| 25 | 46,300 |
| 50 | 92,600 |
| 100 | 185,200 |
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