How to Change Feet and Inches Object Type Data Frame to Inches: Python

I have data frames containing Height data like this

How to change into inches with dtype:float ? thankyou

Try:

df["Heigth_inches"] = (df.Height.str.split("'").str[0].astype(int) * 12) + (
    df.Height.str.split("'").str[1].astype(int)
)
print(df)

Prints:

  Height  Heigth_inches
0    5'7             67
1    6'2             74
2    5'9             69
3   5'11             71
4   5'10             70

EDIT: Changed the computation, thanks @Serge