My iphone only has 5gb worth of memory?

So I got an iPhone 5c for my birthday. And on the box it says it's an 8gb phone but the actual phone only has 5gb on it. What happened to the other 3gb? What do I do?

You can't do anything about it. It comes with apps like calling, texting, notes, calculator, FaceTime app, etc. All of the apps that came on your phone when you got is the 3gb.

Sounds like you got one of the newer, lower capacity (apparently only available in India) 8GB iPhone 5cs.

To answer the question that's normal. IOS & other files take up the space you don't get to use. This is not limited to iPhones nor Apple products btw.

That's normal. The operating system and built-in apps take up the other space. It's actually using a very low amount- I remember when the Samsung Galaxy S4 was released, the 16 GB version came with just 8 GB of free storage because they had so much already installed on it. This one is only using about 3 GB because the storage has been used efficiently.

You can use Apple's iCloud service so you don't fill up the storage as quickly on your phone.