📏 Length & Distance Conversion 2026
Convert between 100+ length and distance units worldwide
1 m = 3.2808 ft
Formula: value × 3.2808
📊 All Conversions
Common Length Conversions
| From | To | Multiply by |
|---|---|---|
| 1 inch | centimeters | 2.54 |
| 1 foot | meters | 0.3048 |
| 1 yard | meters | 0.9144 |
| 1 mile | kilometers | 1.6093 |
| 1 meter | feet | 3.2808 |
| 1 kilometer | miles | 0.6214 |
| 1 nautical mile | kilometers | 1.852 |
| 1 light year | kilometers | 9.461 × 10¹² |
Understanding Length Units
📐 Metric System
Base unit: meter (m). Prefixes: km (1000m), cm (0.01m), mm (0.001m). Decimal-based, used worldwide for science and most countries.
🇺🇸 Imperial/US
Inch, foot, yard, mile. 12 inches = 1 foot, 3 feet = 1 yard, 5280 feet = 1 mile. Used in US, UK (partially), and a few other countries.
⚓ Nautical
Nautical mile = 1,852 meters (1 minute of latitude). Used in aviation and maritime navigation. Knot = nautical mile per hour.
🌌 Astronomical
Light year ≈ 9.46 trillion km. Parsec ≈ 3.26 light years. AU = Earth-Sun distance ≈ 150 million km.
Frequently Asked Questions
How do I convert feet to meters?
Multiply by 0.3048. Formula: meters = feet × 0.3048. Example: 6
feet = 1.83 meters. Or divide feet by 3.281.
How do I convert meters to feet?
Multiply by 3.2808. Formula: feet = meters × 3.2808. Example: 2
meters = 6.56 feet.
How do I convert inches to centimeters?
Multiply by 2.54 (exact). Formula: cm = inches × 2.54. Example: 12
inches = 30.48 cm.
How do I convert miles to kilometers?
Multiply by 1.6093. Formula: km = miles × 1.6093. Example: 10
miles = 16.09 km. Quick estimate: miles × 1.6.
How do I convert kilometers to miles?
Multiply by 0.6214. Formula: miles = km × 0.6214. Example: 100 km
= 62.14 miles. Quick estimate: km × 0.6.
How many feet are in a mile?
5,280 feet = 1 mile. Also: 1,760 yards = 1 mile. 1 mile = 1.609
kilometers.
How many centimeters in an inch?
2.54 cm exactly. This is the international definition. 1 inch =
25.4 mm.
What is a nautical mile?
1,852 meters (international definition). Originally defined as 1
minute of arc along a meridian. Used in navigation. 1 nautical mile ≈ 1.15 statute miles.
What is a light year?
Distance light travels in one year ≈ 9.461 trillion km = 5.879
trillion miles. Used for astronomical distances. Not a unit of time!
What is an astronomical unit (AU)?
Average Earth-Sun distance ≈ 149.6 million km ≈ 93 million miles.
Used for solar system distances. 1 AU = ~8.3 light-minutes.
What is a parsec?
3.26 light years ≈ 30.86 trillion km. Defined by stellar parallax
(1 arcsecond). Used in professional astronomy.
How do I convert height from feet/inches to cm?
Total inches × 2.54. Example: 5'10" = 70 inches × 2.54 = 177.8 cm.
Or use feet × 30.48 + inches × 2.54.
What is a fathom?
6 feet = 1.8288 meters. Originally the span of outstretched arms.
Used historically for water depth.
What is a furlong?
660 feet = 201.17 meters = 1/8 mile. Originally the length of a
furrow in farming. Still used in horse racing.
What is the difference between statute and nautical mile?
Statute mile = 5,280 feet (land). Nautical mile =
6,076 feet (1,852 m). Nautical is ~15% longer.
How do I convert between metric prefixes?
Move decimal point. km to m: ×1000. m to cm: ×100. cm to mm: ×10.
Each prefix differs by factor of 10, 100, or 1000.
How accurate is this length converter?
Uses internationally defined conversion factors. Results are
accurate to high precision for all standard units.