Use imceproteina.com.br to quickly estimate BMI, daily protein, BMR, TDEE, body fat %, ideal weight, Child BMI (WHO), and pregnancy due date. Not a substitute for medical advice.
Most used tools, with clear explanations and easy-to-read results.
BMI (Body Mass Index) screens for weight categories that may lead to health problems. It does not measure body fat directly.
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Estimates a daily protein range based on your weight and goal. A simple way to plan your diet and meals.
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For children and teens (2 to 19 years), BMI changes with age. We use official WHO LMS parameters to estimate z-score and percentile.
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Estimates the delivery date based on your LMP (Last Menstrual Period) and cycle length. Also shows current gestational age.
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Tip: for "daily calories", use BMR → TDEE. For body composition, combine BMI + Body Fat %.
Estimates calories burned at rest using the Mifflin-St Jeor equation (widely considered reliable).
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Estimates your Total Daily Energy Expenditure by multiplying BMR by an activity factor.
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Estimates body fat via circumference measurements (neck, waist, hip). Use a tape measure and repeat 2–3 times for accuracy.
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Reference formulas based on height and sex (often used clinically). They do not define a "perfect" goal for everyone.
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Understand the difference between calculators and when to use each one.
BMI is calculated as weight ÷ height² (kg/m²). It serves as a quick screen for potential weight risks. However, it doesn't distinguish between muscle and fat. Combining it with body fat % and measurements usually gives a better picture.
Protein helps maintain and build muscle mass, and promotes satiety. The ideal amount depends on your goal (health, weight loss, hypertrophy, endurance) and context (training intensity, calorie intake).
BMR is the minimum energy your body burns at rest. TDEE is your total daily expenditure, including activity (work, exercise, steps). People often use TDEE as a baseline to plan for maintenance, deficit (loss), or surplus (gain).
For kids and teens, BMI changes naturally with age. That's why the WHO recommends interpreting BMI by age in months and sex, using curves (z-scores and percentiles). This calculator uses the LMS method to estimate the z-score.
Note: This is a statistical reference and does not replace a pediatrician's evaluation.
The Estimated Due Date is calculated from the LMP by adding 280 days (40 weeks), adjusted for cycle length. It is an estimate—most babies are born within a week or two of this date. First-trimester ultrasounds often provide a more precise date.
No. They are estimates based on formulas and widely used references. Accuracy varies by individual and the quality of measurements provided.
BMR estimates calories burned at rest. TDEE estimates total daily calories by multiplying BMR by an activity factor.
Use a flexible tape, keep it level and constant tension (don't squeeze). Measure waist at the navel level (common approach) and neck just below the larynx.
On this page, Child BMI is set for ages 2 to 19 (WHO curves). For children under 2, other pediatric charts are typically used.
No. These tools are educational and do not replace professional guidance.