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Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today. # Im not sure where I am going wrong.

I am following the tutorial on converting measurements but I am not sure exactly where I am going wrong. I have done the conversation by dividing inches by 12 but my areaInFeet is still not calculating the right amount

area.swift
```// the height and width of a wall
let height = 120.0 // in inches
let width = 144.0 // in inches

let area = height * width

// 1 sq. foot = 1 sq. inch / 12
let areaInFeet = area / 12
``` Hey!

I noticed you are dividing your final area by a Int type. This is probably converting your areaInFeet to an Int, which might make the system think that it's the wrong answer when it's expecting a Double. Be careful when you are using different number types!

Rio,

You are doing

```height * width / 12
```

What you need is

```(height / 12) * (width / 12)
```

Florin

There is no need to create a whole other constant (you named it "area") to store the square feet in inches.

```// the height and width of a wall
let height = 120.0 // in inches
let width = 144.0 // in inches

let areaInFeet = (height / 12) * (width / 12)
```