8 UnitsMetric & Imperial100% Private

1 m =

3.28084 ft

Millimeters (mm)1000
Centimeters (cm)100
Kilometers (km)0.001
Inches (in)39.3701
Feet (ft)3.2808
Yards (yd)1.0936
Miles (mi)0.0006

How It Works

1

Enter Value

Type a length measurement.

2

Pick Units

Select source and target units.

3

Convert

See the converted value instantly.

Frequently Asked Questions

What length units are supported?
Millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles.
How accurate are the conversions?
Standard conversion factors are used with up to 6 decimal places of precision.
Can I convert between metric and imperial?
Yes. Convert freely between metric (mm, cm, m, km) and imperial (in, ft, yd, mi) units.
Share:

About Length

What this tool does

Data converter tools transform structured data between JSON, CSV, YAML, XML, TOML, SQL, TypeScript interfaces, Go structs, and more. They handle nested objects, arrays, and type inference automatically.

Why use this tool

APIs return JSON, spreadsheets export CSV, infrastructure config uses YAML, and legacy systems speak XML. Being able to convert between these formats without writing a custom script saves hours of tedious data wrangling.

How it works

The tool parses your input format into an in-memory object tree, then serializes that tree into the target format. Type information (string, number, boolean) is inferred from values and mapped to the closest equivalent in the output format.

Pro tip

When converting CSV to JSON, the first row is treated as column headers by default. If your CSV has no headers, toggle that option off to get array-of-arrays output instead.

Love this tool? Explore 12467+ more

Free online tools for images, PDFs, text, code, and more. All running in your browser.

Explore All Tools