Sizing Tool
BJJ Gi & Rashguard Size Calculator
Enter your height, weight, build, and washing routine for an IBJJF-compliant gi and rashguard size recommendation. The estimate accounts for the 5–8% shrinkage that 100% cotton gis take on with hot machine drying.
Interactive Gi & Rashguard Size Calculator
Enter your measurements for a size recommendation, with shrinkage compensation
ft
in
lbs
Recommended Kimono Size
A2(Gi)
Rashguard / Spats Size
L(Compression)
Most common adult male division size. Excellent all-around mobility.
Browse Gis in Size A2This calculator gives a starting recommendation, not a guarantee. Cuts vary between brands — always check the manufacturer’s own size chart before ordering, and read the fit notes on the gi size chart guide above if you are between sizes.