Editorial Policy

TDEETools writes calculator content to help users understand TDEE, BMR, calorie deficits, macros, and maintenance calories.

Formula basis

The calculator uses established adult energy-estimation methods, including Mifflin-St Jeor for BMR when body fat is not supplied. Activity multipliers are used to estimate total daily energy expenditure.

Review process

Priority guides include an update date and review note. During updates, we check formula references, unit conversions, calculator output labels, internal links, and current public-health sources.

Core sources

• Mifflin-St Jeor resting energy equation
• CDC healthy weight guidance
• WHO physical activity guidelines
• Dietary Guidelines for Americans, 2025-2030

Medical disclaimer

TDEETools provides educational estimates only. Users with medical conditions, eating disorder history, pregnancy, or very low calorie targets should work with a qualified professional.