Size Converter Tool

This is my present for , both has a birthday present for her character Roamwald and as a congratulations gift for her trip to Spain

Now a few warnings:
- First I know the design is crap but that's because I focused more on the functionality than in its good looks
- Second, the values are based on golden ratios (many of which I had to figure out for myself, so they're not 100% accurate), so it gives the ideal measurements for that body size
- Third, there's not going to be an alpha version unless there's enough popular demand. But comments that just say "I want a better version" will be ignored. I need suggestions on what YOU want to show up in a (possible) complete version and I need opinions on what should be fixed in the current one (minus design). Also any help with the ratios and equations is most welcome because they were a pain to dig up Xp
- Forth and final, many thanks to everyone who helped me with this. Couldn't do it without you XD

Finally, how to use this:
- Introduce the values on the boxes with black font
- Move the slider around to reach the value you want
- Have fun

NOTE: Keep in mind the calculations are metric. You can calculate either in meters or in inches, but not in feet + inches

Edit: With all the hurry I made a mistake in the weight calculation. If you spot any mistakes please let me know asap