Complete Length Converter

Convert between 93+ different units of length and distance. From Planck length to light-years, metric to imperial, and everything in between - including historical, astronomical, and scientific units.

Universal Length Converter

0
Result in words:
0.0000 ft
Conversion Formula:
1 m = 3.2808 ft

All Conversions from 1 m

Exameter
Metric
1.0000e-18 Em
Petameter
Metric
1.0000e-15 Pm
Terameter
Metric
1.0000e-12 Tm
Gigameter
Metric
0.0000 Gm
Megameter
Metric
0.0000 Mm
Kilometer
Metric
0.0010 km
Hectometer
Metric
0.0100 hm
Dekameter
Metric
0.1000 dam
Meter
Metric
1.0000 m
Decimeter
Metric
10.0000 dm
Centimeter
Metric
100.0000 cm
Millimeter
Metric
1000.0000 mm
Micrometer
Metric
1000000.0000 µm
Micron
Metric
1000000.0000 µ
Nanometer
Metric
1000000000.0000 nm
Picometer
Metric
1.0000e+12 pm
Femtometer
Metric
1.0000e+15 fm
Attometer
Metric
1.0000e+18 am
Mile
Imperial
0.0006 mi
Mile (US Survey)
Imperial
0.0006 mi (US)
Kiloyard
Imperial
0.0011 kyd
Yard
Imperial
1.0936 yd
Foot
Imperial
3.2808 ft
Foot (US Survey)
Imperial
3.2808 ft (US)
Inch
Imperial
39.3701 in
Inch (US Survey)
Imperial
39.3700 in (US)
Mil
Imperial
39370.0787 mil
Microinch
Imperial
39370078.7402 µin
Nautical Mile (International)
Nautical
0.0005 nmi
Nautical Mile (UK)
Nautical
0.0005 NM (UK)
Nautical League (International)
Nautical
0.0002 nl
Nautical League (UK)
Nautical
0.0002 nl (UK)
Fathom
Nautical
0.5468 fth
Fathom (US Survey)
Nautical
0.5468 fth (US)
Cable Length
Nautical
0.0054 cable
Light Year
Astronomical
1.0570e-16 ly
Megaparsec
Astronomical
3.2408e-23 Mpc
Kiloparsec
Astronomical
3.2408e-20 kpc
Parsec
Astronomical
3.2408e-17 pc
Astronomical Unit
Astronomical
6.6846e-12 AU
Earth's Equatorial Radius
Astronomical
0.0000 R⊕
Earth's Polar Radius
Astronomical
0.0000 Rₚ⊕
Sun's Radius
Astronomical
0.0000 R☉
Planck Length
Quantum
6.1879e+34 lₚ
Bohr Radius
Quantum
18897259885.7889 a₀
Angstrom
Quantum
10000000000.0000 Å
Atomic Unit of Length
Quantum
18897259885.7889 a.u.
X-unit
Quantum
9.9792e+12 X
Fermi
Quantum
1.0000e+15 F
Classical Electron Radius
Quantum
3.5487e+14 rₑ
League
Traditional
0.0002 lea
League (Statute)
Traditional
0.0002 st.lea
Furlong
Traditional
0.0050 fur
Furlong (US Survey)
Traditional
0.0050 fur (US)
Chain
Traditional
0.0497 ch
Chain (US Survey)
Traditional
0.0497 ch (US)
Rope
Traditional
0.1640 rope
Rod
Traditional
0.1988 rd
Rod (US Survey)
Traditional
0.1988 rd (US)
Perch
Traditional
0.1988 perch
Pole
Traditional
0.1988 pole
Link
Traditional
4.9710 li
Link (US Survey)
Traditional
4.9710 li (US)
Cubit (UK)
Ancient
2.1872 cubit
Cubit (Greek)
Ancient
2.1608 cubit (Gr)
Long Cubit
Ancient
1.8748 l.cubit
Ell
Ancient
0.8749 ell
Hand
Traditional
9.8425 hh
Span (Cloth)
Traditional
4.3745 span
Finger (Cloth)
Traditional
8.7489 finger
Nail (Cloth)
Traditional
17.4978 nail
Handbreadth
Ancient
13.1234 handbreadth
Fingerbreadth
Ancient
52.4934 fingerbreadth
Long Reed
Ancient
0.3125 l.reed
Reed
Ancient
0.3645 reed
Barleycorn
Traditional
118.1102 bc
Arpent
Traditional
0.0171 arpent
Pica
Typography
236.2205 pica
Point
Typography
2834.6455 pt
Twip
Typography
56692.8777 twip
Caliber
Technical
3937.0079 cal
Centiinch
Technical
3937.0079 cin
Aln
International
1.6841 aln
Famn
International
0.5614 famn
Ken
International
0.4721 ken
Russian Archin
International
1.4061 archin
Mile (Roman)
Historical
0.0007 mi (Rom)
Roman Actus
Historical
0.0282 actus
Vara de Tarea
Colonial
0.3991 vara
Vara Conuquera
Colonial
0.3991 vara (con)
Vara Castellana
Colonial
1.1974 vara (cas)

Quick Conversions

Scale Reference

Planck Length (10⁻³⁵ m)
Fundamental quantum scale
Atomic Nucleus (10⁻¹⁵ m)
Protons, neutrons
Angstrom (10⁻¹⁰ m)
Atomic spacing in crystals
Nanometer (10⁻⁹ m)
DNA width, small molecules
Micrometer (10⁻⁶ m)
Bacteria, red blood cell
Millimeter (10⁻³ m)
Thickness of credit card
Centimeter (10⁻² m)
Width of fingernail
Meter (1 m)
Height of door, guitar length
Kilometer (10³ m)
12-15 minute walk
Earth Radius (6.37×10⁶ m)
From center to surface
AU (1.5×10¹¹ m)
Earth to Sun distance
Light Year (9.46×10¹⁵ m)
Distance light travels in 1 year
Parsec (3.09×10¹⁶ m)
Stellar distance measure

Unit Categories (12)

Metric
18 units
EmPmTmGmMmkm+12
Imperial
10 units
mimi (US)kydydftft (US)+4
Nautical
7 units
nmiNM (UK)nlnl (UK)fthfth (US)+1
Astronomical
8 units
lyMpckpcpcAUR⊕+2
Quantum
7 units
lₚa₀Åa.u.XF+1
Traditional
19 units
least.leafurfur (US)chch (US)+13
Ancient
8 units
cubitcubit (Gr)l.cubitellhandbreadthfingerbreadth+2
Typography
3 units
picapttwip
Technical
2 units
calcin
International
4 units
alnfamnkenarchin
Historical
2 units
mi (Rom)actus
Colonial
3 units
varavara (con)vara (cas)

Complete Length Converter Guide

Popular Length Units

  • Metric System: km, m, cm, mm, μm, nm
  • Imperial System: mile, yard, foot, inch
  • Nautical Units: nautical mile, fathom, cable
  • Astronomical: light year, parsec, AU
  • Scientific: angstrom, Planck length, Bohr radius
  • Historical: cubit, league, furlong, chain
  • Typography: pica, point, twip

Conversion Examples

Common: 1 meter = 3.28084 feet = 39.3701 inches
Large: 1 kilometer = 0.621371 miles = 0.539957 nautical miles
Small: 1 inch = 25.4 millimeters = 2.54 centimeters

Unit Categories

Metric (18 units): SI base and derived units from attometer to exameter
Imperial (10 units): Traditional English units including survey variants
Astronomical (8 units): Units for cosmic distances and celestial measurements
Scientific (7 units): Quantum and atomic scale measurements
Traditional (15 units): Historical surveying and land measurement units
Ancient (8 units): Biblical and historical civilizations” units
International (8 units): Various cultural and regional units

Scientific Notation

This converter automatically uses scientific notation for extremely large or small values. For example, 1 light year = 9.461×10¹⁵ meters, and 1 Planck length = 1.616×10⁻³⁵ meters.

How to Use This Complete Length Converter

Basic Conversion

  • Enter your measurement value
  • Select source unit from 93+ options
  • Choose target unit
  • Get instant accurate results

Advanced Features

  • Adjust decimal precision (2-10 places)
  • View all unit conversions simultaneously
  • Use quick conversion shortcuts
  • Reference scale comparisons

Categories Available

  • Metric, Imperial, Nautical
  • Astronomical, Scientific, Quantum
  • Ancient, Traditional, Historical
  • Typography, Technical, Colonial

The most comprehensive length converter with 93+ units from quantum to cosmic scales!