Calculadora de Tamanho de Roupa (Vestido)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Tabela ABNT: P≤38, M=40-42, G=44-46, GG≥48
About this calculator
This dress size calculator helps you find the ideal Brazilian size (PP, P, M, G, GG, or XG) based on your bust, waist, and hip measurements. It follows the ABNT (Brazilian Association of Technical Standards) reference table, which relates body measurements to commercial sizes. To use it, simply enter your three measurements in centimeters and click 'Calculate'. The result will be the suggested size, considering the largest measurement to ensure a comfortable fit.
How it works: the calculator compares each measurement to the ABNT table. For example, if your bust is 90 cm, waist 70 cm, and hips 100 cm, the tool checks which size accommodates all measurements. The final size is the one that fits the largest measurement, preventing the garment from being too tight. The table used is: PP (up to 34), P (36-38), M (40-42), G (44-46), GG (48-50), and XG (above 50). Keep in mind that each brand may have slight variations, so the result is a general guideline.
When to use: ideal for online shopping when you cannot try on clothes, or for custom dressmaking. Also useful for those between sizes who need to decide which one to choose. The calculator is especially practical for party dresses, formal wear, or casual dresses where fit matters. Avoid using it for compression or shapewear garments, which require more precise measurements and stretchy fabrics.
Precautions: measure yourself with a flexible tape measure, close to the body, without tightening. The bust should be measured at nipple height, the waist at the narrowest point, and the hips at the widest point. Prefer wearing light clothing during measurement. Remember that the ABNT table is a reference, and different brands may adopt variations. Always check the store's size chart before finalizing your purchase.
Frequently asked questions
Can I use this calculator for clothes from other brands?
Yes, but keep in mind that each brand may have its own size chart. The result is a reference based on the ABNT table, so always check the store's size chart before buying.
What should I do if my measurements fall between two sizes?
Generally, it is recommended to choose the larger size for more comfort, especially if the fabric is not stretchy. If the dress is adjustable, the smaller size may work.
How to correctly measure bust, waist, and hips?
Use a flexible tape measure. For the bust, measure around the fullest part at nipple height. The waist is the narrowest part of the torso, usually above the navel. The hips are the widest part, about 20 cm below the waist.
Does the calculator work for children's dresses?
No, this calculator is for adult sizes. For children, there are specific tables that consider height and age.
Why does the result show the size based on the largest measurement?
To ensure the dress is not tight in any part of the body. The garment needs to accommodate the largest measurement to fit comfortably.