How about jeans sizes
Jeans sizes are measured in inches. The first number here concerns the waist size 40, which amounts to 101.6 cm. The measure of length is the second number, in this case 34 and is converted 86.4 cm.
How do you measure yourself
This can easily be done with a measuring tape. Measure the circumference of your hips, waist and thighs. Make sure you don't forget to measure the length of your inner legs. Did you measure everything? You can then consult the size chart for the correct size. The circumference of your thigh is particularly important when buying skinny-fit jeans or slim-fit jeans.
What are widths
The width size can be found in the first digit of the size combination. With jeans that is 40/34. A width size is based on a waist size.
What are measures of length
Measuring your height is easy! Grab a tape measure and measure from your crotch to where you want the trouser leg to sit. Consult a size chart to ultimately determine your trouser length.