Disclaimer

Nature of the results

The Maintenance Calorie Calculator uses the Mifflin–St Jeor equation — one of the most accurate publicly validated formulas for estimating resting metabolic rate — combined with an activity multiplier to produce a Total Daily Energy Expenditure (TDEE) estimate.

While this approach is widely used and supported by nutritional research, it produces a population-level average estimate. Your actual calorie needs may be higher or lower depending on factors the calculator cannot measure, including:

• Metabolic adaptation — your metabolism can slow or speed up in response to diet history
• Medical conditions — thyroid disorders, insulin resistance, PCOS, and many other conditions affect energy balance
• Medications — certain drugs measurably alter metabolic rate or appetite
• Body composition — muscle mass burns more calories than fat at rest; the calculator uses weight, not body fat percentage
• Accurate activity estimation — most people find it difficult to objectively assess their true activity level

Not a medical device

This website is not a medical device, and does not claim to be. It is an educational tool built to help users understand the general concept of energy balance. It is not regulated by any health authority and has not been reviewed or approved by any medical body.

No professional relationship

Using this calculator does not create a patient–provider relationship between you and the site owner. The results should be treated as a starting point for self-education, not a clinical recommendation.

Seek professional guidance

If you have any of the following, please speak with a licensed healthcare provider before making changes to your diet or exercise routine:

• A diagnosed medical condition, including but not limited to diabetes, cardiovascular disease, kidney disease, or eating disorders
• A history of disordered eating
• Pregnancy or breastfeeding
• You are under 18 years of age
• Any concern about your nutritional health

Accuracy of third-party references

This site links to external scientific publications and government health resources for reference. We believe these sources to be accurate and authoritative at the time of linking, but we cannot guarantee their continued accuracy or availability.

No liability

The site owner accepts no responsibility for decisions made based on the output of this calculator. Use of this tool is entirely at your own discretion and risk.