EARRING LENGTH GUIDE IN INCHS
The following picture will help you to understand the length of the dangle in inches.
Image source – Pinterest
NECKLACE LENGTH GUIDE IN INCHES
The following picture will help you to understand the length of the neckpieces in inches.
Source – Pinterest
BANGLES SIZE GUIDE
You will need a Measuring tape or a thick paper and a ruler.
Measure the inside diameter of a bangle that you already own. It measures inside the diameter of such bangle in millimeters. This is normally used for double checking your results from the usual paper method. Apart from this, you can also make use of the bangle that you wear daily and cross check the same with below chart.
Source – Malabar Gold and Diamonds page