The typical size for a carry-on bag is about 22 x 14 x 9 inches (height x width x depth), including handles and wheels. This size is commonly accepted by many U.S. domestic airlines such as American Airlines and is considered the standard for carry-on luggage

. However, carry-on size limits can vary by airline and region. For example, many European airlines set the maximum carry-on size around 55 x 35 x 25 cm (approximately 21.5 x 14 x 10 inches), including wheels and handles

. Some airlines allow slightly larger or smaller dimensions, and weight limits also vary, typically ranging from 7 kg to 23 kg depending on the airline and class of service

. In summary:

• Standard U.S. carry-on size: 22 x 14 x 9 inches (56 x 36 x 23 cm)
• Common European carry-on size: ~55 x 35 x 25 cm
• Weight limits: Usually between 7 kg and 23 kg, depending on airline and ticket class

Always check the specific airline's carry-on luggage policy before traveling to ensure compliance.