All Converter Pro
在线 单位换算器
即时转换长度、重量、温度、面积、体积、速度和数据单位。公制与英制互转:公里转英里、公斤转磅、°C 转 °F 等。
关于此 单位换算器 工具
The unit converter handles the everyday conversions between metric and imperial systems: length (kilometers ↔ miles, centimeters ↔ inches, meters ↔ feet), weight (kilograms ↔ pounds, grams ↔ ounces), temperature (Celsius ↔ Fahrenheit), plus area, volume, speed and digital data units (MB, GB, TB). Results update instantly as you type, in both directions, with sensible precision. It covers the conversions that come up in recipes (grams to cups by weight, oven °C to °F), travel (km to miles, kg baggage limits to lbs), fitness (body weight, running pace) and work (file sizes, room dimensions, shipping weights) - without ads-cluttered lookup tables or doing mental math with remembered factors.
如何使用 单位换算器
- 打开工具并添加您的文件、文字或数值。
- 检查可用选项,例如页面范围、输出格式、质量、密码或语言。
- 开始处理,并在完成前保持浏览器窗口打开。
- 下载结果,如有需要可继续使用相关工具。
实用提示
- 对于扫描的 PDF,支持 OCR 的工具会尽可能自动运行文字识别。
- 对于大文件,在通过邮件分享或上传到门户网站之前,请使用压缩工具。
- 为获得最佳效果,请上传扩展名正确的干净文件,避免使用损坏的文档。
常见问题
Which unit types can I convert?
Length, weight/mass, temperature, area, volume, speed and digital data. Within each type all the common metric and imperial units are available - for example meters, kilometers, inches, feet, yards and miles under length.
How accurate are the conversions?
Conversions use the exact standard factors (for example 1 inch = 2.54 cm exactly) and display results with enough precision for practical use.
How does temperature conversion differ from other units?
Temperature uses formulas rather than multiplication: °F = °C × 9/5 + 32. That is why 0°C is 32°F, not 0°F - the scales have different zero points.
What is the difference between MB and MiB?
MB (megabyte) uses powers of 1000; MiB (mebibyte) uses powers of 1024. Storage makers use MB, operating systems often measure in MiB - which is why a "500 GB" drive shows as roughly 465 GB in Windows.
Does the converter work offline or on mobile?
It runs directly in your browser and works on desktop, tablet and mobile. Values are calculated on your device - nothing is uploaded.
免费吗?
Yes - free and unlimited, with no account.