If you need a full recommendation based on body measurements, use the Suit Size Calculator.
This tool helps translate suit sizes across common country sizing systems, including US, UK, EU, Australia, and Japan. It is designed for shoppers who already know one tagged suit size and want the closest equivalent in another country’s system.
Sizes such as 40R or 42L include both a chest-based size number and a jacket length code. The number usually reflects the base jacket size, while the letter indicates Short, Regular, or Long. These length codes are most commonly used in US, UK, and Australian sizing systems.
Suit sizes do not convert perfectly across every brand or retailer. Even when two sizes are considered equivalents, the actual fit can vary depending on the cut, construction, fabric, and fit style of the garment.
This converter is best used as a quick reference tool. Always compare the converted result with the brand’s own size chart before buying. If you want a more personalized recommendation, use the full suit size calculator on this site.
