BMI Calculator for Men – Professional Male Body Mass Index Tool
💪 Men’s Health
BMI Calculator for Men
Professional body mass index calculator with male-specific insights, healthy weight range, body fat estimation, and personalized health recommendations.
📐 Waist-to-Hip Ratio (WHR) – Additional Health Indicator
';
} else if (bmi < 25) {
recHTML = '
🥗Maintain Balance
Maintain a balanced diet with lean protein, vegetables, and healthy fats. Stay hydrated and limit processed foods. Consider micronutrient needs for men.
' +
'
🏃Stay Active
Mix cardio (150-300 min/week) with strength training 2-3x. Include mobility work and core exercises. Consistency is key.
';
} else if (bmi < 30) {
recHTML = '
🥗Smart Nutrition
Practice portion control. Increase fiber and lean protein. Reduce sugary drinks and refined carbs. Consider tracking macros.
' +
'
🏃Movement & Lifestyle
Start with walking 30 min/day. Add strength training 2-3x weekly. Prioritize sleep and stress management for hormonal balance.
';
} else {
recHTML = '
👨⚕️Professional Support
Consult a healthcare provider. Consider working with a dietitian and possibly a bariatric specialist. Medical supervision is key.
' +
'
🚶Gentle Movement
Start with low-impact activities like walking or swimming. Aim for 10-15 minutes daily, gradually increasing. Check with your doctor first.
';
}
recommendationsEl.innerHTML = recHTML;
const tableRows = document.querySelectorAll('.chart-table tbody tr');
tableRows.forEach(row => row.classList.remove('highlight-row'));
let highlightIndex = 0;
if (bmi < 18.5) highlightIndex = 0;
else if (bmi < 25) highlightIndex = 1;
else if (bmi < 30) highlightIndex = 2;
else if (bmi < 35) highlightIndex = 3;
else if (bmi < 40) highlightIndex = 4;
else highlightIndex = 5;
if (tableRows[highlightIndex]) tableRows[highlightIndex].classList.add('highlight-row');
resultsSection.scrollIntoView({ behavior: 'smooth', block: 'start' });
}
function resetAll() {
weightInput.value = '';
heightCmInput.value = '';
ageInput.value = '';
waistInput.value = '';
hipInput.value = '';
if (heightFeetInput) heightFeetInput.value = '';
if (heightInchesInput) heightInchesInput.value = '';
resultsSection.classList.remove('visible');
whrResultEl.classList.remove('visible');
whrResultEl.innerHTML = '';
weightUnitSelect.value = 'kg';
heightUnitSelect.value = 'cm';
currentWeightUnit = 'kg';
currentHeightUnit = 'cm';
updateWeightPlaceholder();
renderHeightInputs();
syncWaistHipUnits();
weightInput.focus();
window.scrollTo({ top: 0, behavior: 'smooth' });
}
function calculateWHR() {
try {
const waist = parseFloat(waistInput.value);
const hip = parseFloat(hipInput.value);
if (isNaN(waist) || waist <= 0) throw new Error('Please enter a valid waist measurement.');
if (isNaN(hip) || hip <= 0) throw new Error('Please enter a valid hip measurement.');
let waistCm = waist;
let hipCm = hip;
if (waistUnitSelect.value === 'in') waistCm = waist * 2.54;
if (hipUnitSelect.value === 'in') hipCm = hip * 2.54;
if (waistCm <= 0 || hipCm <= 0) throw new Error('Measurements must be positive numbers.');
const whr = waistCm / hipCm;
const roundedWHR = Math.round(whr * 100) / 100;
let whrCategory, whrColor, whrEmoji, whrDetail;
if (whr < 0.85) {
whrCategory = 'Low WHR (Pear Shape)';
whrColor = '#3b82f6';
whrEmoji = '🔵';
whrDetail = 'Fat stored in hips and thighs. Generally lower cardiovascular risk for men.';
} else if (whr <= 0.95) {
whrCategory = 'Optimal WHR';
whrColor = '#10b981';
whrEmoji = '🟢';
whrDetail = 'Optimal range for men. Balanced fat distribution and lower health risks.';
} else {
whrCategory = 'High WHR (Apple Shape)';
whrColor = '#ef4444';
whrEmoji = '🔴';
whrDetail = 'Fat stored around the waist. Higher risk for cardiovascular disease and diabetes.';
}
whrResultEl.innerHTML =
'WHR: ' + roundedWHR + ' ' +
'' + whrEmoji + ' ' + whrCategory + ' ' +
'' + whrDetail + '';
whrResultEl.classList.add('visible');
whrResultEl.style.background = whrColor + '15';
whrResultEl.style.border = '2px solid ' + whrColor + '40';
} catch (e) {
alert('⚠️ ' + e.message);
}
}
function syncWaistHipUnits() {
if (currentWeightUnit === 'lb' || currentWeightUnit === 'st') {
waistUnitSelect.value = 'in';
hipUnitSelect.value = 'in';
} else {
waistUnitSelect.value = 'cm';
hipUnitSelect.value = 'cm';
}
}
window.calculateBMI = calculateBMI;
window.calculateWHR = calculateWHR;
window.handleWeightUnitChange = handleWeightUnitChange;
window.handleHeightUnitChange = handleHeightUnitChange;
window.resetAll = resetAll;
document.addEventListener('keydown', function(e) {
if (e.key === 'Enter') {
const active = document.activeElement;
if (active && active.tagName === 'INPUT' && active.id !== 'waistInput' && active.id !== 'hipInput') {
calculateBMI();
}
}
if (e.key === 'Escape') {
resetAll();
}
});
window.addEventListener('load', function() {
weightInput.focus();
renderHeightInputs();
syncWaistHipUnits();
});
document.querySelectorAll('input[type="number"]').forEach(input => {
input.addEventListener('input', function() {
if (this.value < 0) this.value = 0;
});
});
weightUnitSelect.addEventListener('change', syncWaistHipUnits);
})();
