Length Converter
Convert between 30+ different length and distance units instantly with up to 10 decimal places of precision. Designed for engineers, architects, students, travelers, and scientists.
Length Conversion Calculator — Direct Answers
Direct Summary: A length converter converts metric (meters, km, cm, mm), imperial (feet, inches, yards, miles), and scientific units (light years, parsecs, angstroms) using internationally recognized conversion multipliers based on the BIPM SI standard .
Online Length Calculator
How to Use Our Length Converter
Step-by-Step Instructions:
- 1 Enter the length value you want to convert in the "From" input field.
- 2 Select your source measurement unit from the dropdown list.
- 3 Choose your desired output unit in the "To" dropdown section.
- 4 View the instant calculation result calculated automatically.
Popular Conversion Shortcuts:
- Feet to Meters: 1 ft = 0.3048 m
- Inches to Centimeters: 1 in = 2.54 cm
- Kilometers to Miles: 1 km = 0.621371 mi
- Yards to Meters: 1 yd = 0.9144 m
- Millimeters to Inches: 1 mm = 0.03937 in
Real-Time Multi-Unit Conversion Table
Below are the equivalent distance values for 100 Meters across all major measurement units:
Length Converter Chart — Quick Conversion Reference Table
Use this length converter chart as a quick offline reference for the most common length conversions. Our length conversion chart covers all major imperial and metric units and is ideal for engineers, students, and professionals who need a handy length converter chart without searching online every time. Bookmark this length converter chart for instant access.
| From Unit | To Meter (m) | To Foot (ft) | To Inch (in) | To mm | To cm | To km |
|---|---|---|---|---|---|---|
| 1 Meter (m) | 1.0 | 3.28084 | 39.3701 | 1,000 | 100 | 0.001 |
| 1 Foot (ft) | 0.3048 | 1.0 | 12.0 | 304.8 | 30.48 | 0.0003048 |
| 1 Inch (in) | 0.0254 | 0.08333 | 1.0 | 25.4 | 2.54 | 0.0000254 |
| 1 Kilometer (km) | 1,000 | 3,280.84 | 39,370.1 | 1,000,000 | 100,000 | 1.0 |
| 1 Centimeter (cm) | 0.01 | 0.032808 | 0.39370 | 10.0 | 1.0 | 0.00001 |
| 1 Millimeter (mm) | 0.001 | 0.003281 | 0.03937 | 1.0 | 0.1 | 0.000001 |
| 1 Mile (mi) | 1,609.344 | 5,280 | 63,360 | 1,609,344 | 160,934.4 | 1.60934 |
| 1 Yard (yd) | 0.9144 | 3.0 | 36.0 | 914.4 | 91.44 | 0.0009144 |
This length converter chart is based on exact SI definitions. Use our length converter above to convert any value instantly without manual calculation.
Length Converter to mm (Millimeters)
Use our length converter to mm to convert any measurement into millimeters instantly. The length converter to mm is essential for precision engineering, PCB board layout, manufacturing tolerances, and textile pattern cutting. When you need a length converter to mm, simply enter your value in feet, inches, or meters and our tool outputs the exact millimeter equivalent.
Common Length Converter to mm Values:
- 1 inch = 25.4 mm
- 1 foot = 304.8 mm
- 1 meter = 1,000 mm
- 1 centimeter = 10 mm
- 1 yard = 914.4 mm
Length Converter to Meters
Our length converter to meters handles conversions from all common imperial and scientific units. Use the length converter to meters for scientific lab measurements, construction blueprints, and sports field dimensions. The length converter to meters uses the exact SI multiplier as defined by the International Bureau of Weights and Measures (BIPM).
Common Length Converter to Meters Values:
- 1 foot = 0.3048 m
- 1 inch = 0.0254 m
- 1 mile = 1,609.344 m
- 1 yard = 0.9144 m
- 1 kilometer = 1,000 m
Length Converter Foot & Inches — Imperial Length Conversion Calculator
The length converter foot and length converter inches features are specifically designed for users working with the US Customary and British Imperial systems. A length converter foot calculation converts feet to meters (1 ft = 0.3048 m), feet to inches (1 ft = 12 in), or feet to centimeters (1 ft = 30.48 cm). The international foot was defined in 1959 as exactly 0.3048 meters.
Whether you need a length converter foot for measuring human height, architectural floor plans, or aviation altitude (feet above sea level), our length converter provides instant, accurate conversions.
Quick Height Converter (Feet & Inches ↔ CM)
Easily convert human height records between Feet + Inches and Centimeters for medical forms, passports, and fitness tracking:
Length Conversion Formula Reference Matrix
Reference conversion multipliers for common metric and imperial length units:
Meters = Feet × 0.3048CM = Inches × 2.54KM = Miles × 1.609344Meters = Yards × 0.9144KM = Nmi × 1.852Meters = LY × 9.4607e15How to Convert Length Units in 4 Easy Steps
Enter Amount
Type any distance quantity into the source input box.
Select Source Unit
Choose your initial measurement unit (Meters, Feet, Inches, Miles, etc.).
Select Target Unit
Select your desired target unit or click Swap to reverse direction.
Copy Result
Instantly view calculated results, multi-unit matrix, and copy values with 1-click.
Explore Related Measurement & Unit Converters
Access our full suite of free online unit conversion tools: