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Length & Distance Converters

Convert meters, feet, inches, kilometers, miles, light years, pixels and more.

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Length & Distance Converter

Convert meters, feet, inches, kilometers, miles, light years, pixels and more.

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Length & Distance Live Calculation Matrix

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🔥 Popular Length & Distance Conversions

Meter to Kilometer (m → km) Calculate now → Meter to Centimeter (m → cm) Calculate now → Meter to Millimeter (m → mm) Calculate now → Kilometer to Meter (km → m) Calculate now → Kilometer to Centimeter (km → cm) Calculate now → Kilometer to Millimeter (km → mm) Calculate now → Centimeter to Meter (cm → m) Calculate now → Centimeter to Kilometer (cm → km) Calculate now →

📚 Supported Units in this Category

Metric / SI System

Meter (m)

SI base unit of length

Kilometer (km)

1,000 meters

Centimeter (cm)

1/100 of a meter

Millimeter (mm)

1/1,000 of a meter

Micrometer (Micron) (µm)

1/1,000,000 of a meter

Nanometer (nm)

1 billionth of a meter

Nautical Mile (nmi)

1,852 meters (navigation)

Light Year (ly)

Distance light travels in 1 year

Astronomical Unit (AU)

Earth-Sun average distance

Pixel (at 96 DPI) (px)

Digital screen unit

Point (Typographic) (pt)

1/72 inch

Imperial / US Customary

Mile (mi)

5,280 feet

Yard (yd)

3 feet

Foot (ft)

12 inches

Inch (in)

Standard imperial inch

🔗 Full Length & Distance Conversion Matrix

Direct pairing pages for all combinations of supported units.

m → km m → cm m → mm m → µm m → nm m → mi m → yd m → ft m → in m → nmi m → ly m → AU m → px m → pt km → m km → cm km → mm km → µm km → nm km → mi km → yd km → ft km → in km → nmi km → ly km → AU km → px km → pt cm → m cm → km cm → mm cm → µm cm → nm cm → mi cm → yd cm → ft cm → in cm → nmi cm → ly cm → AU cm → px cm → pt mm → m mm → km mm → cm mm → µm mm → nm mm → mi mm → yd mm → ft mm → in mm → nmi mm → ly mm → AU mm → px mm → pt µm → m µm → km µm → cm µm → mm µm → nm µm → mi µm → yd µm → ft µm → in µm → nmi µm → ly µm → AU µm → px µm → pt nm → m nm → km nm → cm nm → mm nm → µm nm → mi nm → yd nm → ft nm → in nm → nmi nm → ly nm → AU nm → px nm → pt mi → m mi → km mi → cm mi → mm mi → µm mi → nm mi → yd mi → ft mi → in mi → nmi mi → ly mi → AU mi → px mi → pt yd → m yd → km yd → cm yd → mm yd → µm yd → nm yd → mi yd → ft yd → in yd → nmi yd → ly yd → AU yd → px yd → pt ft → m ft → km ft → cm ft → mm ft → µm ft → nm ft → mi ft → yd ft → in ft → nmi ft → ly ft → AU ft → px ft → pt in → m in → km in → cm in → mm in → µm in → nm in → mi in → yd in → ft in → nmi in → ly in → AU in → px in → pt nmi → m nmi → km nmi → cm nmi → mm nmi → µm nmi → nm nmi → mi nmi → yd nmi → ft nmi → in nmi → ly nmi → AU nmi → px nmi → pt ly → m ly → km ly → cm ly → mm ly → µm ly → nm ly → mi ly → yd ly → ft ly → in ly → nmi ly → AU ly → px ly → pt AU → m AU → km AU → cm AU → mm AU → µm AU → nm AU → mi AU → yd AU → ft AU → in AU → nmi AU → ly AU → px AU → pt px → m px → km px → cm px → mm px → µm px → nm px → mi px → yd px → ft px → in px → nmi px → ly px → AU px → pt pt → m pt → km pt → cm pt → mm pt → µm pt → nm pt → mi pt → yd pt → ft pt → in pt → nmi pt → ly pt → AU pt → px

❓ Knowledge Base

Length & Distance — Frequently Asked Questions

Everything you need to know about unit conversions, mathematical formulas, and measurement systems.

01 How do I convert between Metric and Imperial units?

To convert between Metric and Imperial units, multiply the given value by the standardized international conversion factor. For example, 1 inch equals exactly 2.54 centimeters, 1 kilometer equals approximately 0.621371 miles, and 1 kilogram equals approximately 2.20462 pounds. Our converter calculates these conversions instantly using official BIPM and NIST conversion standards.

02 What is the difference between Weight and Mass in conversions?

Mass is the intrinsic amount of matter in an object and remains constant regardless of gravitational pull (measured in kilograms or grams in SI). Weight is the force exerted on that mass by gravity (W = mg), measured in Newtons (N) or pound-force (lbf). In commercial and everyday contexts, terms like 'pounds' and 'kilograms' are conventionally used interchangeably as units of mass under standard Earth gravity (9.80665 m/s²).

03 Why does temperature conversion require adding or subtracting numbers?

Unlike length or mass scales that start at absolute zero (0 m = 0 ft), the Fahrenheit and Celsius temperature scales have different zero points. The freezing point of water is 0°C but 32°F. To convert Celsius to Fahrenheit, scale by the degree ratio and add the offset: °F = (°C × 9/5) + 32. To convert Fahrenheit to Celsius: °C = (°F - 32) × 5/9.

04 How accurate are the conversion calculations on this website?

All calculations are computed using 64-bit double-precision floating-point arithmetic mapped directly to exact SI, BIPM, and NIST base conversion factors. Output values can be customized to display 2, 4, 6, or scientific decimal notation depending on your precision requirements.

05 Can I use this unit converter offline on my mobile phone?

Yes. This website operates as a Progressive Web App (PWA). All standard unit conversion calculations, formulas, and reference tables run locally in your browser and function completely offline without requiring an active internet connection.