Length Converter — Calculator

About length conversions

Length is the distance between two points, and every unit here is a fixed fraction or multiple of the meter — the SI base unit, defined as the distance light travels in a vacuum in 1/299,792,458 of a second. Because the definitions are exact, conversions between metric units are exact, and the imperial ones are exact too: an inch is defined as exactly 2.54 centimeters, a foot as 0.3048 meters, and a mile as 1,609.344 meters.

Different scales use different units. Tanzania, like most of the world, measures roads, land and rainfall in metric — road signs in kilometers, fabric in meters, rainfall in millimeters. Imperial units survive where standards were set in the United States or UK: screen sizes, pipe and hose diameters, aviation altitude. Converting between the two systems is a single fixed multiplication, which is what this converter applies.

Road distances and speed limits are metric in Tanzania (kilometers).
Height is quoted in centimeters locally, and in feet and inches in imperial countries.
Screen sizes and pipe diameters are still specified in inches worldwide.
Aviation uses feet for altitude and nautical miles for distance.

Reading the answers. 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.

The units in this converter

What each unit is and where it is normally used. Everything here is converted through the meters.

Millimeters (mm): 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.
Centimeters (cm): 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.
Meters (m): 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.
Kilometers (km): 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.
Inches (in): 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.
Feet (ft): 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.
Yards (yd): 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.
Miles (mi): 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.
Nautical miles (nmi): 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.

Tanzania reference points

Real quantities in length, shown in the units people actually use.

Uhuru Peak on Mount Kilimanjaro, the highest point in Africa
5,895 m · 5,895,000 mm · 589,500 cm · 5.895 km · 232,086.614173 in · 19,340.551181 ft · 6,446.850394 yd · 3.662983 mi · 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 · 1,830,000 mm · 183,000 cm · 1.83 km · 72,047.244094 in · 6,003.937008 ft · 2,001.312336 yd · 1.137109 mi · 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 · 4,877,000 mm · 487,700 cm · 4.877 km · 192,007.874016 in · 16,000.656168 ft · 5,333.552056 yd · 3.030427 mi · 2.633369 nmi
Source: UNEP-WCMC World Heritage datasheet — Kilimanjaro National Park · verified 2026-09-14

Popular conversions

Miles to Kilometers Kilometers to Miles Meters to Feet Feet to Meters Centimeters to Inches Inches to Centimeters Centimeters to Feet Meters to Yards Kilometers to Meters Meters to Centimeters

Convert from any length unit

Each unit has its own page with every other unit in the dimension, the exact factor for each, and worked values.

Millimeters convertermm to 8 other length units Centimeters convertercm to 8 other length units Meters converterm to 8 other length units Kilometers converterkm to 8 other length units Inches converterin to 8 other length units Feet converterft to 8 other length units Yards converteryd to 8 other length units Miles convertermi to 8 other length units Nautical miles converternmi to 8 other length units

Frequently asked questions

How many kilometers are in a mile?

One mile equals exactly 1.609344 kilometers. To convert miles to kilometers, multiply the number of miles by 1.609344.

How many centimeters are in an inch?

One inch equals exactly 2.54 centimeters. To convert inches to centimeters, multiply by 2.54.

How many feet are in a meter?

One meter equals approximately 3.28084 feet. To convert meters to feet, multiply by 3.28084.

How tall is Mount Kilimanjaro in feet?

Uhuru Peak, the summit of Mount Kilimanjaro, is 5,895 meters — about 19,341 feet. The height is the figure the UNEP-WCMC world heritage datasheet records for the peak.

All length conversions

Every length conversion on Calculator, listed in full.

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