计算工具/单位换算器
单位换算器
长度、重量、体积、温度等多种单位换算
长度
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Unit Converter Guide
Learn how to effectively use the unit converter
What is Unit Converter?
The Unit Converter is a tool that converts values between different measurement units. It supports 8 categories: length, weight, volume, area, temperature, speed, time, and data storage. Perfect for cooking, travel, science projects, or any situation where you need to convert between metric and imperial systems.
How to Use
- Select a category (e.g., Length, Weight, Temperature)
- Choose the source unit you want to convert from
- Enter the value you want to convert
- Select the target unit and see the instant result
Practical Tips
- Use the swap button to quickly reverse the conversion direction
- Temperature conversion uses special formulas - not just multiplication
- Data storage units use binary (1024) base, not decimal (1000)
Accuracy & Limitations
All calculations are performed in your browser with high precision. Results are rounded to 6 decimal places for display. For very large or very small numbers, scientific notation is used automatically.
常见问题
公制和英制有什么区别?
公制(SI单位制)基于十进制,世界大部分地区使用(米、千克、升)。英制主要在美国、利比里亚和缅甸使用,包括英尺、磅、加仑等。公制更易于转换,是科学领域的标准。
温度转换公式是什么?
摄氏(°C)转华氏(°F):F = (C × 9/5) + 32。华氏转摄氏:C = (F - 32) × 5/9。摄氏转开尔文(K):K = C + 273.15。开尔文的0度是绝对零度,用于科学计算。
数据存储单位中1KB是1000B还是1024B?
传统上在计算机领域1KB = 1024B(2的10次方)。但存储制造商使用1KB = 1000B(SI标准)。为避免混淆,IEC引入了KiB(千字节,1024B)。本工具使用二进制(1024)标准。
美国加仑和英国加仑有什么区别?
美国加仑(约3.785升)比英国加仑(约4.546升)小约20%。这源于历史上的不同定义。在食谱或油耗比较时,确认使用的是哪种加仑很重要。
速度单位之间的快速转换方法?
km/h转m/s:÷3.6(如:100km/h ≈ 27.8m/s)。mph转km/h:×1.6(如:60mph ≈ 96km/h)。节转km/h:×1.852(如:10节 ≈ 18.5km/h)。节用于航海和航空。