Free online unit converter tools
Ten instant unit converters that run entirely in your browser. Convert length, weight, temperature, speed, volume, energy, and more — no signup, no upload.
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公分转英吋
实时将公分转为英吋或英吋转为公分,内含完整对照表。
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公斤转磅
公斤转磅或磅转公斤,亦显示英石(stone)与盎司。
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摄氏转华氏
摄氏转华氏、华氏转摄氏,或将任一者转为克氏(Kelvin)温度。
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MPH 转 KPH
将英哩/小时转为公里/小时,或 kph 转 mph,亦显示 m/s 与节。
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公升转加仑
将公升转为美制或英制加仑,亦显示 fl oz、杯、品脱与夸脱。
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卡路里转千焦
kcal 转 kJ 或 kJ 转 kcal,亦显卡(cal)与焦耳(J)。
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毫米转点(pt)
在 mm、pt、px、英吋与 cm 之间互转,适用印刷与网页排版。
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字节可读格式转换
将原始字节数转换为人类可读大小,同时显示 SI(十进位)与 IEC(二进位)单位。
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秒数转时长
将秒数转为天、时、分、秒,显示 HH:MM:SS 与口语化表示。
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科学记号转换
将数字与科学记号互相转换,亦显示工程记号表示法。
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Why use browser-based unit converters?
Every converter here runs entirely inside your browser — no server round trips, no account needed, no data sent to a third party. Whether you are converting centimeters to inches for a recipe, kilograms to pounds for a shipping label, or bytes to megabytes for storage planning, all calculations happen locally and results are instant.
Choosing the right converter
Use the Centimeters to Inches converter for everyday length conversions. The Celsius to Fahrenheit converter is handy for weather and cooking. For nutrition labels, use Calories to Kilojoules. Designers working across print and screen will find the Millimeters to Points converter essential. For data sizes, Bytes to Readable shows both SI and IEC representations at a glance.