Check dimensions before buying online.
Length Converter
Convert inches to centimeters, feet to meters, and miles to kilometers. Swap units, use common presets, and copy the result without signing in.
Start here
Enter a value and select its original unit.
Browser-first
Measurements are calculated locally in your browser and are not uploaded or stored on a server.
Useful for
Check dimensions before buying online
Common conversions
Use a decimal point, without thousands separators.
Conversion result1 in = 2.54 cm
Conversion factor: 1 in ≈ 2.54 cm
Results show up to 12 significant digits; calculations use unrounded values.
Show other units
Millimeters25.4 mm
Centimeters2.54 cm
Meters0.0254 m
Kilometers0.0000254 km
Inches1 in
Feet0.0833333333333 ft
Yards0.0277777777778 yd
Miles0.0000157828282828 mi
Not sure which tool to use? Read the conversion guide
Back to tool Quick answer
Length Converter: compare dimensions
Choose the unit printed next to the measurement before converting. A foot contains 12 inches; mixing them up changes a dimension by a factor of twelve.
Screen sizes usually describe the diagonal. This converter does not infer screen width, shoe size, or a combined feet-and-inches entry.
Volume: Convert US cups to milliliters, gallons to liters, and cubic meters to liters. US customary, Imperial and metric cup definitions are labeled separately.
About this tool
Convert inches to centimeters, feet to meters, and miles to kilometers. Swap units, use common presets, and copy the result without signing in.
Measurements are calculated locally in your browser and are not uploaded or stored on a server.
How to use it
- Enter a value and select its original unit.
- Choose the target unit or a common conversion preset.
- Read the result and conversion factor; swap units or copy the result as needed.
Common use cases
- Check dimensions before buying online
- Read a drawing with metric and inch measurements
- Convert travel distances
How the conversion works
Choose the unit printed next to the measurement before converting. A foot contains 12 inches; mixing them up changes a dimension by a factor of twelve.
10 inches × 2.54 = 25.4 centimeters. Six feet equals 1.8288 meters.
Check before using the result
Screen sizes usually describe the diagonal. This converter does not infer screen width, shoe size, or a combined feet-and-inches entry.
Reference sources
FAQ
How many centimeters are in an inch?
One international inch is exactly 2.54 centimeters.
Can I enter 5 feet 10 inches?
Convert the total 70 inches, or convert the feet and inches separately and add the results. The input accepts one number and one unit.
Does it convert square feet?
Use the area converter for square feet. Area conversion squares the length ratio.