Unit Converter
Convert values between common length units.
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浏览器内运行这个工具能做什么
Measure distances and lengths across metric and imperial units in the browser.
It is designed for fast one-off conversions without any setup.
The same workspace covers length, mass, temperature, area, volume, speed, and data size, so you can switch categories without opening a new tool.
这个工具可以完成什么
Convert meters to feet, kilograms to pounds, liters to gallons, or kilometers per hour to miles per hour when adapting specs for another region.
Quickly convert dimensions, weights, and volumes while reviewing product sheets, packaging notes, or technical documentation.
Switch between Celsius, Fahrenheit, and Kelvin for weather, device settings, recipes, lab notes, or troubleshooting instructions.
依赖结果前需要检查什么
- Performance and maximum practical input size depend on browser memory, device speed, and the structure of the input.
- Review the generated result before replacing or publishing an original file.
如何使用
- 1
Enter a numeric value.
- 2
Choose source and target units.
- 3
Review the converted value and adjust units as needed for the next check.
使用场景
Convert meters to feet, kilograms to pounds, liters to gallons, or kilometers per hour to miles per hour when adapting specs for another region.
Quickly convert dimensions, weights, and volumes while reviewing product sheets, packaging notes, or technical documentation.
Switch between Celsius, Fahrenheit, and Kelvin for weather, device settings, recipes, lab notes, or troubleshooting instructions.
Translate bits, bytes, KB, MB, GB, and TB when checking upload limits, storage plans, or bandwidth notes.
使用技巧
Celsius, Fahrenheit, and Kelvin include offsets, so they cannot be converted by multiplying alone. Use the temperature category instead of doing mental math.
Storage vendors often use decimal units while operating systems may display binary units. Check whether your context expects KB/MB/GB or KiB/MiB/GiB.
The tool shows practical precision, but reports and UI copy often need fewer decimals. Keep full precision for engineering checks and round for human-facing copy.
常见问题
Which units are supported?
The tool covers seven categories: Length (mm to mi), Weight/Mass (mg to lb), Temperature (°C, °F, Kelvin), Area (mm² to km², including acres), Volume (ml to US gallon), Speed (m/s, km/h, mph, knots, ft/s), and Data Size (bytes to TB across the listed decimal and binary units). All conversions happen instantly in the browser with no server round-trip.
Can I enter decimal values?
Yes. Decimal values are fully supported for all unit conversions.
How precise are the results?
Results are shown to 6 significant figures.
下一步常用工具
如果还需要校验、转换或复用结果，可以继续打开相近的浏览器本地工具。