以 6寸照片是多少厘米为关键词，我们来探讨一下照片尺寸的转换方法和不同国家的常用标准。

在我们开始之前，我们需要了解两个不同度量单位之间的转换规则。英制尺寸中的“寸”是一个长度单位，1英寸等于2.54厘米。因此，我们可以使用这个比例将英寸转换为厘米。

现在，让我们来计算出6寸照片的厘米尺寸。根据上述转换规则，我们知道1英寸等于2.54厘米。因此，6英寸等于15.24厘米。所以，6寸照片的厘米尺寸是15.24厘米。

English Translation:

With the keyword "How many centimeters is a 6-inch photo?", let's explore the methods of converting photo dimensions and the common standards in different countries.

Before we begin, we need to understand the conversion rules between two different units of measurement. The "inch" in the imperial system is a unit of length, where 1 inch equals 2.54 centimeters. Therefore, we can use this conversion ratio to convert inches to centimeters.

Now, let's calculate the centimeter dimensions of a 6-inch photo. According to the conversion rule mentioned earlier, we know that 1 inch equals 2.54 centimeters. Therefore, 6 inches equals 15.24 centimeters. Hence, the centimeter dimensions of a 6-inch photo are 15.24 centimeters.