Size 60 in baby clothes is a European size that is equivalent to U.S. size 3-6 months. This size will typically fit a baby who is 12 to 16 pounds, or 22 to 26 inches long. European baby clothing sizes are labeled based on maximum centimeters in height, meaning a size 60 should fit a baby up to 60 centimeters, or around 23.6 inches long. However, its important to note that different brands may have slightly different sizing standards, so its always best to check the exact brands size chart.