Ive started to read back through the above book that i bought online last year but it is in imperial units and i'm finding it really difficult to constantly keep converting it to SI units.

I've been looking online to see if i can get it with SI unit of measurements but i'm not sure where i can get it from.

I've seen on amazon that the 5th edition uses both imperial and metric which i imagine will still be confusing.

Is it not possible to get this book in just SI?

I have the 4th edition.