Length Converter
Convert between different length units. Supports metric and imperial systems with real-time conversion.
📊 Converted Value:
⚡ Common Conversions:
| 1 meter | = | 100 cm |
| 1 inch | = | 2.54 cm |
| 1 foot | = | 30.48 cm |
| 1 yard | = | 0.9144 m |
| 1 mile | = | 1.609 km |
📜 Recent Conversions:
The conversion factors
Every unit is expressed as a multiple of the metre (the base), then divided by the target unit’s value. Key factors:
- Metre = 1 - the SI base unit of length
- Inch = exactly 0.0254 m · Foot = 12 in = 0.3048 m · Yard = 3 ft = 0.9144 m
- Mile = 5,280 ft = exactly 1,609.344 m
- Nautical mile = exactly 1,852 m (international)
- Millimetre 0.001 · centimetre 0.01 · kilometre 1,000 · micrometre 1e⁼ · nanometre 1e⁻ (SI prefixes, exact)
Worked example: 1 mile = 1,609.344 m ÷ 1,000 = 1.609344 km. 1 inch = 0.0254 m = exactly 2.54 cm.
Why the imperial figures are exact
Since the 1959 international yard and pound agreement, the yard and pound are defined by fixing 1 inch = exactly 0.0254 m, which makes the foot, yard and mile exact decimal multiples of the metre too. The metre itself has been defined since 1983 by the distance light travels in vacuum in 1/299,792,458 of a second, and the international nautical mile is fixed at exactly 1,852 m. So none of these conversions is an approximation.
Precision & review
Results are rounded only for display, to the decimals you pick. Methodology last reviewed: October 2026. All maths runs in your browser; favourites and history are stored only in your own browser’s local storage.
How to Use Length Converter
Follow these simple steps to get the best results.
Enter a value and pick units
Type the length and choose the source and target units from metres, kilometres, centimetres, miles, yards, feet and inches; it converts live as you type.
Set precision or star a favourite
Adjust the decimal places, flip the direction with Swap, or star a conversion to reuse it later from your favourites.
Copy the result
Read the converted value and the common-conversions table, then Copy Result. Recent conversions stay only in your own browser; nothing is uploaded.
Frequently Asked Questions
Everything you need to know about Length Converter.
About the Length Converter Tool
Convert between meters, feet, miles, and more with the ToolFlic Length Converter. This tool is essential for anyone working in construction, design, or international travel, providing a fast and reliable way to translate any length or distance between all major measurement units.
Core Advantages
Ensure your projects are perfectly sized, no matter which unit system you are using. Our converter handles everything from nanometers and millimeters up to miles and nautical miles, providing precise results for everyday tasks and engineering alike.
Architecture & Security
We use a high-precision floating-point engine to ensure that your conversions are accurate to multiple decimal places. Everything is handled client-side, giving you instant results without any network latency or data collections.
Under the Hood: the Length Converter explained properly
No marketing filler - just the mechanics, the trade-offs and the real limits, explained clearly.
How it actually works
Every length unit is defined by its size in metres, the base, so a conversion is a multiply into metres and a divide out; the list runs from nanometres and micrometres through millimetres, centimetres, metres and kilometres to inches, feet, yards, miles and nautical miles, with a filter for metric, imperial and other units.
What that means for your results
The factors are the exact international definitions - an inch is 0.0254 metres, a nautical mile is 1852 metres - so results stay consistent, and a quick-reference block repeats the everyday inch, foot, yard and mile values.
Where it falls short - honestly
It converts length only: there is no area, volume or speed, so a room or a parcel needs its dimensions multiplied elsewhere, and it computes in floating point, so extreme values can carry rounding. Exotic units beyond the list are absent.
A real end-to-end workflow
Convert each dimension separately and multiply afterwards for area, anchor on the exact inch-to-centimetre value when ordering or cutting, and use Weight Converter or Temperature Converter for the other systems and Unit Converter for broader categories.
In-Depth Guides Using This Tool
Tested workflows, exact sizes and limits - written step by step by the ToolFlic team.
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