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Length Converter
Length Converter – Instantly Convert Inches, Feet, CM, MM & More
Looking for a quick and easy way to convert between inches, centimeters, feet, and other units of length? Our free online length converter helps you instantly calculate between different measurement systems—metric and imperial—with 100% accuracy.
Whether you're doing a DIY project, construction, or science homework, this tool has you covered.
Supported Length Units
- Millimeters (mm)
- Centimeters (cm)
- Meters (m)
- Kilometers (km)
- Inches (in)
- Feet (ft)
- Yards (yd)
- Miles (mi)
- Nautical Miles
- Light-years
- Astronomical Units (AU)
- Micrometers (μm)
- Nanometers (nm)
How to Use the Length Converter?
- Enter the number value in the input box.
- Select the unit to convert from.
- Select the unit to convert to.
- Get the result instantly!
Conversion Examples
- 100 cm to inches → 39.37 inches
- 5 feet to meters → 1.524 meters
- 1 mile to kilometers → 1.60934 km
Conversion Formula
Length in Target Unit = Length in Base Unit × Conversion Factor
Example: 1 inch = 2.54 cm → 10 inches = 10 × 2.54 = 25.4 cm
Length Conversion Table
| From | To | Multiply by |
|---|---|---|
| Inches | Centimeters | 2.54 |
| Feet | Meters | 0.3048 |
| Yards | Meters | 0.9144 |
| Miles | Kilometers | 1.6093 |
| CM | Inches | 0.3937 |
| Meters | Feet | 3.2808 |
FAQs
How do I convert cm to inches?
Multiply the value in cm by 0.3937 to get inches.
What is 5 feet in meters?
5 feet = 1.524 meters.
Which unit is used in the US?
The US primarily uses the imperial system—inches, feet, and miles.
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Pro Tip: If you’re working in engineering, architecture, or travel, understanding unit conversions can save time and avoid costly mistakes. Bookmark this tool for quick access!
