What size is 30 waist UK?
US 10 - either UK 12 (Waist 29”/30" and Bust 37”/38") or UK 14 (Waist 31”/32" and Bust 39”/40") US 12 - approximately UK 14 (Waist 31”/32" and Bust 39”/40") US 14 - approximately UK 16 (Waist 33"/34" and Bust 41"/42") US 16 - approximately UK 18 (Waist 35”/36" and Bust 43”/44")
If you are a woman go for higher size than your US size when buying clothes. If you are a US 4, in UK size, you will be a UK 8. If you are a man, go for the same size when buying clothes. For example, a size US 30-32 is the same as a UK 30-32.
If you ask yourself, what size is a 30 inch waist in women's jeans, then use this chart to find out that it corresponds to a US Size 12 or EU 40.
As you can see in the chart below, the US size is 2 sizes smaller than the UK size. For example, if you need a US women's size 12, you would need to order a UK women's size 16. For a US women's size 18, this would be a UK women's size 22. Simple, right?
For men, a waist circumference below 94cm (37in) is 'low risk', 94–102cm (37-40in) is 'high risk' and more than 102cm (40in) is 'very high'. For women, below 80cm (31.5in) is low risk, 80–88cm (31.5-34.6in) is high risk and more than 88cm (34.6in) is very high.
If you are a woman go for higher size than your US size when buying clothes. If you are a US 4, in UK size, you will be a UK 8. If you are a man, go for the same size when buying clothes. For example, a size US 30-32 is the same as a UK 30-32.
A levis 30 inch waist normally fits a 27-28 inch waist. Which then translates to different sizes in different brands (i.e. in Next for that means a size 8 or 10 depending on whether it is a top or bottom - and M&S it is a size 10 or 12).
Jeans Size Calculator
While some jeans come in regular UK sizes, such as 6 or 16, many offer more precise sizing. For example, a size 10 is a jeans size 28. However, if you find you're in-between sizes, a waist 29 pair of jeans equates to a size 11.
Size 28 is usually a size 10.
A 26-inch waist: Measurement equivalent to a UK size 8 found to be most attractive attribute. It doesn't matter how sparkling a woman's smile is or how lovely her eyes – a cinched-in waist is the most attractive female attribute, a study has found.
What size is a 30 waist in jeans?
For example, a waist that measures 30” will convert to sizes 29-31 in women's jeans and a size 28 in men's jeans.
Men's Clothing and Shoe Size Conversions:
UK and the US men's clothing share the same clothing sizes for both casual and formal wear. This includes neck size, sleeve length, sportcoat/jacket sizing (also called chest size) and waist size.

If you want to know your UK shoe size: Your measured foot length + 1.5 cm is 29 cm. According to the formula, this gives you a result of 9.25. Round up to the next highest size, resulting in a UK shoe size of 9.5.
To do this, lay the jeans flat on a flush surface and then, using a flexible tape measure, carefully measure the length of the band, from one side pocket to the other. Simply double this number to find the waist measurement.
(In case you're not familiar with these sizes... a size 27 is generally a size 4, and a size 30 is generally a size 10.
A 30 inch waist typically corresponds to a US dress size of 10-12 or 40-42 in Euro sizes. Additionally, this waist circumference should put you in an international size Medium for other women's clothing. At the same time, men with a 30 inch waist would likely fall into the Small to Medium size range for clothing.
If you ask yourself what size is a 30-inch waist in girl's/women's jeans, then use this chart to find out that it corresponds to a US Size 12 or EU 40.
For example, a waist that measures 30” will convert to sizes 29-31 in women's jeans and a size 28 in men's jeans.
A 30 inch waist typically corresponds to a US dress size of 10-12 or 40-42 in Euro sizes. Additionally, this waist circumference should put you in an international size Medium for other women's clothing. At the same time, men with a 30 inch waist would likely fall into the Small to Medium size range for clothing.
(In case you're not familiar with these sizes... a size 27 is generally a size 4, and a size 30 is generally a size 10.
Are UK clothes sizes getting smaller?
In the last decade, while the UK population has only gotten bigger, an average size 8 has shrunk by two inches, writes Georgia Aspinall.
While some jeans come in regular UK sizes, such as 6 or 16, many offer more precise sizing. For example, a size 10 is a jeans size 28. However, if you find you're in-between sizes, a waist 29 pair of jeans equates to a size 11.
Jeans sizes are indicated in inches, for example 30/32. The first number indicates the waist size and the second indicates the inside leg length. Determine your inch size by measuring jeans that fit well. The inside leg length is measured from the top of the inside leg to the bottom opening.
They consist of two numbers, e.g. 30 / 34. The first number is the waist circumference. The second number is the inside leg length; which is the length from the crotch, along the leg, to the ground. Tall sizes.
W is width (Waist = W ) and L stands for leg length (L = Length), a pair of pants in size 30/28 will have a waist circumference of 30 inches and a length of 28 inches.