Jacket Size Calculator
Calculate your suit, coat, or jacket size based on body measurements. Support for US, UK, EU, and international sizing charts for men and women.
Find Your Perfect Jacket Fit
Buying a jacket or suit coat online can be challenging due to differences in sizing charts between brands, genders, and regions. The Jacket Size Calculator is designed to remove the guesswork. By entering a few simple body measurements, you can instantly find your recommended jacket size in US, UK, European, and international formats.
How to Measure for a Jacket
To get the most accurate results, use a fabric measuring tape and wear thin clothing:
- Chest Circumference: Wrap the tape under your armpits and around the fullest part of your chest or bust. Keep the tape horizontal and snug but not tight.
- Height (Men): Stand straight against a wall and measure from the floor to the top of your head. This determines if you need a Short (S), Regular (R), or Long (L) fit.
- Hips Circumference (Women): Measure around the fullest part of your hips and buttocks to ensure the jacket hem fits comfortably.
Jacket Size Conversions and Formulas
For men, standard suit and jacket sizes in the US and UK correspond directly to the chest circumference in inches. In Europe, the size is typically the US size plus 10 (or chest circumference in cm divided by 2).
For women, sizes are determined by a combination of bust and hip measurements. Sizing runs on numerical scales (0, 2, 4, etc.) and letter ranges (XS, S, M, etc.) which map to various regional systems.
Check Out Other Sizing Tools
Need to convert other sizes? Explore our collection of clothing and accessory sizing calculators:
Frequently Asked Questions
What does the S, R, and L suffix mean in men's jacket sizes?
The suffix represents the jacket length based on height: S stands for Short (under 5'7" or 170 cm), R for Regular (5'7" to 5'11" or 170-180 cm), and L for Long (over 5'11" or 180 cm).
Should I size up if I plan to wear layers under my jacket?
Yes, if you plan to wear thick sweaters or a suit jacket underneath an overcoat, it is recommended to add 1 to 2 inches (2.5 to 5 cm) to your chest measurement or select one size larger.
How do US and European women's jacket sizes compare?
European women's sizes are typically the US size plus 30. For example, a US size 6 corresponds to a European size 36, and a US size 12 corresponds to a European size 42.