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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

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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

  1. Select a category (e.g., Length, Weight, Temperature)
  2. Choose the source unit you want to convert from
  3. Enter the value you want to convert
  4. 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。