The most important thing is to take off any of your clothing, and be only in your underwear. It will make it easier for you, if someone can help you when taking the measurements, so you can relax your body. Make sure you stand straight, without lowering your head. Keep your usual posture, keep your arms down, freely along the body. Make sure the measuring tape is fit comfortable to the body, not too tight. Always double check your measurements to make sure you have them accurate.
If the dress is entirely fitted, you have to consider everything: bust, waist and hips. If your dress is A-line or ball gown, the most important is to take the measurements of your bust and waist. When ordering a custom dress, it is also important to know how to take your hollow to hem measured. Remember: even your bra or nylon tights can add volume, so make sure you wear nothing but the underwear you are going to be in on your Wedding day. Put the tape around the area tight enough just to stay in position.
Bust
Pass the measuring tape around your back and up to the front, at the level of the fullest part of your bust. Keep the tape leveled in a straight line and don’t make it too tight, you should be able to fit a finger between the tape and your body. Don’t hold your breath, simply relax and breath normally.
Waist
The waist is not around your belly button or across your hipbones, it is the smallest part of your torso. Just like you did with your bust, pass the measuring tape along your waist. Don’t make it too tight, breath normally and remember to fit a finger between the tape and your waist. It’s the best to hold the measuring tape the way you want the dress to fit.
Hip
Stand straight and pull the tape across the widest part of the hips and fullest part of your bottom. Again, don’t make it too tight, you should be able to fit a finger in order to be comfortable to sit in the dress of your wedding day.