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Weight Loss Calculator | Nutrition
Weight Loss Calculator - TDEE minus deficit
Built by an engineer who chases finish lines and is obsessed with data. Thomas Prommer — technology executive who has worked with Google, Apple, Nike, Adidas, Netflix and other global brands. Also an Ironman finisher, HYROX Pro Division competitor, and marathon runner. These tools combine engineering rigor with real race experience.
Weight Loss Calculator
TDEE minus deficit.
Methodology
TDEE minus deficit. Safe rate: 0.5-1kg/week (500-1000 kcal deficit). Minimum intake: 1200 kcal.
FAQ
How does this calculator work?
TDEE minus deficit. Safe rate: 0.5-1kg/week (500-1000 kcal deficit). Minimum intake: 1200 kcal.
How accurate is this estimate?
Based on validated formulas with ~10% margin. Individual metabolism varies.
Should I consult a professional?
Yes, especially for medical conditions, eating disorders, or significant weight changes.
How often should I recalculate?
Every 2-4 weeks or after 2-3 kg of weight change.