MyFitCalcs
Comprehensive Guide

Understanding Your Results

Learn what your fitness calculator numbers mean and what action to take next. From BMI to body fat to macros - we explain it all.

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BMI Results Explained

Body Mass Index - what your number means

BMI RangeCategoryWhat It Means
Below 18.5UnderweightMay indicate insufficient calorie intake or medical issues
18.5 - 24.9NormalHealthy weight range associated with lowest health risks
25 - 29.9OverweightSlightly elevated health risks; time to focus on diet/exercise
30+ObeseSignificantly elevated health risks; medical consultation advised

What To Do Next

  • Underweight: Calculate TDEE and aim for slight surplus (200-300 cal)
  • Normal: Focus on body composition with Body Fat Calculator
  • Overweight/Obese: Calculate TDEE and create 300-500 calorie deficit

Body Fat Percentage Guide

More accurate than BMI for body composition

Men's Body Fat

RangeCategory
2-5%Essential Fat (unhealthy)
6-13%Athletes
14-17%Fitness
18-24%Average
25%+Obese

Women's Body Fat

RangeCategory
10-13%Essential Fat (unhealthy)
14-20%Athletes
21-24%Fitness
25-31%Average
32%+Obese

Realistic Body Fat Goals

For Men:
  • • 10-12% = Visible six-pack abs
  • • 12-15% = Athletic, lean physique
  • • 15-18% = Healthy, sustainable year-round
For Women:
  • • 18-20% = Very lean, visible abs
  • • 20-24% = Athletic, toned appearance
  • • 24-28% = Healthy, sustainable year-round

TDEE & Calorie Results

Understanding your daily calorie needs

BMR

Basal Metabolic Rate

Calories burned at complete rest. Never eat below this for extended periods.

TDEE

Total Daily Energy Expenditure

BMR + activity calories. Eat at this to maintain weight.

Goal Calories

Adjusted for your goal

Deficit for fat loss, surplus for muscle gain, TDEE for maintenance.

Calorie Adjustment Guide

GoalCalorie AdjustmentExpected Rate
Aggressive Fat Loss-500 to -750 cal (20-25%)1-1.5 lbs/week
Moderate Fat Loss-300 to -500 cal (15-20%)0.5-1 lbs/week
Lean Bulk+200 to +300 cal (5-10%)0.25-0.5 lbs/week
Aggressive Bulk+400 to +600 cal (10-20%)0.5-1 lbs/week

Macro Calculator Results

Protein, Carbs, and Fat breakdown

Protein

4 calories per gram

Fat Loss: 0.8-1g per lb body weight
Muscle Gain: 0.7-0.8g per lb
Maintenance: 0.6-0.7g per lb

Carbs

4 calories per gram

High Activity: 40-50% of calories
Moderate: 30-40% of calories
Low-Carb: 20-30% of calories

Fats

9 calories per gram

Minimum: 20% of calories (hormone health)
Typical: 25-35% of calories
Keto: 60-75% of calories

Macro Flexibility

Your macros don't need to be perfect every single day. Focus on weekly averages and hitting protein consistently.

  • • Protein is most important - prioritize hitting this daily
  • • Carbs and fats can vary based on preference and hunger
  • • Total calories matter more than exact macro split (within reason)
  • • Adjust based on energy, performance, and results

Next Steps After Calculating

Turn your results into action

1

Record Your Baseline

Save your calculator results, take starting photos, and record measurements. You can't track progress without a baseline.

2

Start Tracking

Use your calorie and macro targets to plan meals. Track food intake for at least 2 weeks to establish consistency.

3

Monitor Progress

Weigh yourself 3-4 times per week (same time, same conditions). Use weekly averages, not daily fluctuations.

4

Adjust as Needed

If you're not seeing progress after 2-3 weeks, recalculate and adjust calories by 10-15%. Be patient - real changes take time.