It's not too short to stop you from experimenting with interesting updos and it's not so long it takes you an age to blow dry in the morning.
Meanwhile, other leading ladies like Jennifer Connelly and Jessica Alba have been strong supporters of mid-length styles for years.
Want some inspiration before you add a few inches to your bob or perhaps you're planning to lose your longer locks for the summer months? Take a look below to see 10 of the best celebrity long bobs:
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Need a neat but glamorous hairstyle for a special occasion? Follow our step-by-step guide on how to do the perfect structured chignon at home...