How To Use Step by Step BMI Calculator Tool

HOW TO USE STEP BY STEP
Step 1: OPEN THE TOOL
Click on the BMI Calculator
See beautiful blue and white screen
Step 2: SELECT YOUR MEASUREMENT SYSTEM

✅ Click “Metric Units” → Use centimeters (cm) and kilograms (kg)
(Example: Height 170 cm, Weight 70 kg)

✅ Click “Imperial Units” → Use feet/inches and pounds (lbs)
(Example: Height 5 feet 7 inches, Weight 154 lbs)

Step 3: ENTER YOUR DETAILS
If you chose METRIC:

Height Box: Type your height in cm
(Example: 170 for 5’7″)

Weight Box: Type your weight in kg
(Example: 70)

OR use the sliders below boxes

If you chose IMPERIAL:

Feet Box: Type feet number (Example: 5)

Inches Box: Type inches number (Example: 7)

Weight Box: Type weight in lbs (Example: 154)

OR use slider below

Step 4: ADD AGE & GENDER
Age Box: Type your age (Example: 30)

Gender: Click Male or Female button
(Buttons change color when selected)

Step 5: CALCULATE BMI
Click big blue button: “Calculate BMI”

Wait 1 second for results

See green success message appear

Step 6: UNDERSTAND YOUR RESULTS
You will see:

YOUR BMI NUMBER (Big number in center)

Below 18.5 = Underweight (Blue)

18.5-24.9 = Normal (Green) ✅

25-29.9 = Overweight (Yellow)

30+ = Obese (Red/Orange)

CATEGORY with color box

HEALTHY WEIGHT RANGE for your height

MOVING MARKER on color scale

Step 7: CHECK HEALTH TIPS
Scroll down to see personalized tips

Read 4 recommendation boxes

Follow suggestions for your category

Step 8: VIEW HISTORY
See your past calculations below

Click any past result to reload it

Track progress over time

🎯 QUICK START FOR FIRST TIME
Try this example:

Click “Metric Units”

Type: Height = 170, Weight = 70

Type: Age = 30

Click: “Male”

Click: “Calculate BMI”

See result: BMI = 24.2 (Normal – Green)

💡 IMPORTANT TIPS FOR USERS
For Accurate Results:
Measure height without shoes

Weigh yourself morning empty stomach

Enter exact numbers, not rounded

What BMI Numbers Mean:
< 18.5 → Eat more, gain healthy weight

18.5-24.9 → Perfect! Maintain this

25-29.9 → Exercise more, eat healthy

30+ → Consult doctor, make plan

Tool Features:
Sliders: Drag for quick changes

History: All calculations saved automatically

Charts: See your progress graph

Print: Press Ctrl+P to print results

❓ COMMON USER QUESTIONS
Q: My height is 5 feet 6 inches. What to type?
A: Click “Imperial Units” → Type 5 in Feet, 6 in Inches

Q: How to change from kg to pounds?
A: Click “Imperial Units” button at top

Q: Can I save my results?
A: Yes! All results save automatically

Q: How accurate is this?
A: Uses WHO standards – Same as doctors use

Q: What if I make mistake?
A: Just type new numbers and click Calculate again

📱 MOBILE USERS
Works perfectly on phones, Tap boxes to type, Swipe to scroll, All buttons work same