{"id":372,"date":"2025-04-09T23:02:59","date_gmt":"2025-04-09T23:02:59","guid":{"rendered":"https:\/\/foreverfitandstrong.com\/?page_id=372"},"modified":"2025-04-25T17:14:18","modified_gmt":"2025-04-25T17:14:18","slug":"macro-calculator","status":"publish","type":"page","link":"https:\/\/foreverfitandstrong.com\/?page_id=372","title":{"rendered":"Macro Calculator"},"content":{"rendered":"<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <title>Macronutrient Calculator<\/title>\n    <style>\n        \/* Initially hide the results section *\/\n        #resultSection {\n            display: none;\n        }\n    <\/style>\n<\/head>\n<body>\n\n    <h2>Macro Calculator<\/h2>\n\n    <!-- Form for User Input -->\n    <form id=\"macroCalculator\">\n        <label for=\"gender\">Gender:<\/label><br>\n        <select id=\"gender\">\n            <option value=\"female\">Female<\/option>\n            <option value=\"male\">Male<\/option>\n        <\/select><br><br>\n\n        <label for=\"weight\">Weight (lbs):<\/label><br>\n        <input type=\"number\" id=\"weight\" required><br><br>\n\n        <label for=\"height\">Height (inches):<\/label><br>\n        <input type=\"number\" id=\"height\" required><br><br>\n\n        <label for=\"age\">Age (years):<\/label><br>\n        <input type=\"number\" id=\"age\" required><br><br>\n\n        <label for=\"activityLevel\">Activity Level:<\/label><br>\n        <select id=\"activityLevel\">\n            <option value=\"1.2\">Sedentary (little or no exercise)<\/option>\n            <option value=\"1.3\">Low step count, lifting 1-2x\/week<\/option>\n            <option value=\"1.4\">Moderate step count, lifting 3-4x\/week<\/option>\n            <option value=\"1.5\">High step count, lift 4+ days\/week or strenuous job<\/option>\n            <option value=\"1.7\">Performance athlete<\/option>\n        <\/select><br><br>\n\n        <label for=\"goal\">Goal:<\/label><br>\n        <select id=\"goal\">\n            <option value=\"lose\">Fat Loss<\/option>\n            <option value=\"maintain\">Maintenance<\/option>\n            <option value=\"gain\">Muscle Gain<\/option>\n        <\/select><br><br>\n\n        <button type=\"button\" onclick=\"calculateMacros()\">Calculate Macros<\/button>\n    <\/form>\n\n    <!-- Results Display -->\n    <div id=\"resultSection\">\n        <h3>Results<\/h3>\n        <p id=\"result\"><\/p>\n    <\/div>\n\n    <script>\n        function calculateMacros() {\n            \/\/ Get user input\n            const weight = parseFloat(document.getElementById('weight').value);\n            const height = parseFloat(document.getElementById('height').value);\n            const age = parseInt(document.getElementById('age').value);\n            const gender = document.getElementById('gender').value;\n            const activityLevel = parseFloat(document.getElementById('activityLevel').value);\n            const goal = document.getElementById('goal').value;\n\n            \/\/ Validate inputs\n            if (isNaN(weight) || isNaN(height) || isNaN(age)) {\n                alert(\"Please fill out all fields correctly.\");\n                return;\n            }\n\n            \/\/ Convert height from inches to cm and weight from lbs to kg\n            const heightCm = height * 2.54;\n            const weightKg = weight \/ 2.20462;\n\n            \/\/ Calculate BMR using the Mifflin St. Jeor equation\n            let bmr;\n\n            if (gender === \"female\") {\n                bmr = 10 * weightKg + 6.25 * heightCm - 5 * age - 161;  \/\/ Female equation\n            } else {\n                bmr = 10 * weightKg + 6.25 * heightCm - 5 * age + 5;  \/\/ Male equation\n            }\n\n            \/\/ Adjust for activity level\n            const tdee = bmr * activityLevel;\n\n            \/\/ Adjust for goal\n            let caloricIntake;\n            if (goal === 'lose') {\n                caloricIntake = tdee * 0.8; \/\/ 0.8 x TDEE for fat loss\n            } else if (goal === 'gain') {\n                caloricIntake = tdee * 1.055; \/\/ 1.055 x TDEE for muscle gain\n            } else {\n                caloricIntake = tdee; \/\/ Maintenance\n            }\n\n            \/\/ Macro breakdown (assuming general macro distribution: 40% carbs, 30% protein, 30% fats)\n            const carbs = (caloricIntake * 0.4) \/ 4;  \/\/ 1g of carbs = 4 calories\n            const protein = (caloricIntake * 0.3) \/ 4;  \/\/ 1g of protein = 4 calories\n            const fats = (caloricIntake * 0.3) \/ 9;  \/\/ 1g of fat = 9 calories\n\n            \/\/ Display results\n            document.getElementById('result').innerHTML = `\n                <strong>Calories per day: <\/strong>${Math.round(caloricIntake)}<br>\n                <strong>Carbs: <\/strong>${Math.round(carbs)}g<br>\n                <strong>Protein: <\/strong>${Math.round(protein)}g<br>\n                <strong>Fats: <\/strong>${Math.round(fats)}g\n            `;\n\n            \/\/ Show the results section after calculation\n            document.getElementById('resultSection').style.display = 'block';\n        }\n    <\/script>\n\n<\/body>\n<\/html><h3 class=\"wp-block-heading\">About the Calculator<\/h3><p>This macronutrient calculator uses the <strong>Mifflin-St. Jeor equation<\/strong> to estimate Basal Metabolic Rate (BMR), which is widely regarded as one of the most accurate formulas for calculating daily energy needs based on age, height, weight, and sex. Your <strong>Total Daily Energy Expenditure (TDEE)<\/strong> is then estimated by multiplying your basal metabolic rate (BMR) by an <strong>activity factor<\/strong> that reflects your lifestyle\u2014from sedentary to highly active or athletic. This helps account for the calories you burn through movement, exercise, and daily tasks.<\/p><p>To help tailor results to your goals, calories are adjusted based on whether your focus is <strong>fat loss<\/strong> or <strong>muscle gain<\/strong>. For fat loss, the calculator reduces total calories to 80% of your TDEE\u2014a sustainable deficit for most individuals. For muscle gain, it increases calories to 105.5% of TDEE to provide the surplus energy needed for building lean mass without excessive fat gain.<\/p><p>Remember, the numbers provided by this calculator are a starting point\u2014<strong>not a guarantee.<\/strong> Everyone\u2019s body responds differently, and adjustments may be needed over time to reflect your metabolism, lifestyle, and goals.<\/p><p>If you\u2019re looking for more guidance, I offer <strong><a href=\"https:\/\/foreverfitandstrong.com\/?page_id=92\">1:1 online coaching<\/a><\/strong> to help you reach your goals with clarity and confidence. I also offer <span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"><a href=\"https:\/\/foreverfitandstrong.com\/?page_id=126\" target=\"_blank\"><strong>macro-friendly recipes<\/strong><\/a><\/span> filled with high-protein, balanced meals to support your journey and make tracking easier and more enjoyable.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Macronutrient Calculator Macro Calculator Gender: FemaleMale Weight (lbs): Height (inches): Age (years): Activity Level: Sedentary (little or no exercise)Low step count, lifting 1-2x\/weekModerate step count, lifting 3-4x\/weekHigh step count, lift 4+ days\/week or strenuous jobPerformance athlete Goal: Fat LossMaintenanceMuscle Gain Calculate Macros Results About the Calculator This macronutrient calculator uses the Mifflin-St. Jeor equation to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-372","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - 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