Calorie & BMR Calculator
Calculate your Basal Metabolic Rate (BMR) — the calories you burn at complete rest — and your Total Daily Energy Expenditure (TDEE) based on your activity level. Uses the Mifflin-St Jeor equation, the most validated formula for adults. Free and private.
Key Capabilities
What is the difference between BMR and TDEE?
BMR (Basal Metabolic Rate) is the number of calories your body burns at complete rest to maintain basic physiological functions. TDEE (Total Daily Energy Expenditure) is your BMR multiplied by an activity factor to account for physical activity. TDEE represents the calories needed to maintain your current weight.
Which calorie formula is most accurate?
The Mifflin-St Jeor equation (1990) is considered the most accurate for estimating BMR in the general adult population, outperforming the older Harris-Benedict equation in multiple validation studies. However, all formulas provide estimates — individual metabolic rates vary by ±200 kcal/day.
How do I use TDEE to lose weight?
To lose approximately 0.5 kg per week, create a daily deficit of 500 kcal below your TDEE. For 1 kg per week, aim for a 1,000 kcal deficit. Always ensure intake stays above 1,200 kcal/day for women and 1,500 kcal/day for men. Consult a dietitian for personalised guidance.
How to Use
Upload your medical document
Open the Calorie & BMR Calculator tool and upload your medical document (prescription, lab report, or medical record). Your data stays in your browser — zero server uploads.
AI analysis begins
The tool analyzes your document using specialized medical OCR models trained on healthcare documents. This typically takes 3-8 seconds.
Review extracted information
Review the structured medical information extracted from your document. Copy results or download for your records.
Frequently Asked Questions
What is the difference between BMR and TDEE?
BMR (Basal Metabolic Rate) is the number of calories your body burns at complete rest to maintain basic physiological functions. TDEE (Total Daily Energy Expenditure) is your BMR multiplied by an activity factor to account for physical activity. TDEE represents the calories needed to maintain your current weight.
Which calorie formula is most accurate?
The Mifflin-St Jeor equation (1990) is considered the most accurate for estimating BMR in the general adult population, outperforming the older Harris-Benedict equation in multiple validation studies. However, all formulas provide estimates — individual metabolic rates vary by ±200 kcal/day.
How do I use TDEE to lose weight?
To lose approximately 0.5 kg per week, create a daily deficit of 500 kcal below your TDEE. For 1 kg per week, aim for a 1,000 kcal deficit. Always ensure intake stays above 1,200 kcal/day for women and 1,500 kcal/day for men. Consult a dietitian for personalised guidance.
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