5 UnitsLive Conversion100% Private

100 km/h =

62.137119 mph

mph62.1371
m/s27.7778
Knots53.9957
Mach0.081

How It Works

1

Enter Speed

Type a speed value.

2

Pick Units

Select source and target units.

3

Convert

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Frequently Asked Questions

What speed units are supported?
Kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), knots, and Mach number.
What Mach number is used?
Mach 1 is defined as 343 m/s (speed of sound at sea level at 20°C).
What are knots used for?
Knots (nautical miles per hour) are commonly used in aviation and maritime navigation.
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About Speed

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.

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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.

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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.

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