Tool
Weight Loss Calculator
Estimate maintenance calories minus a modest deficit. Educational only. Very low intakes need clinical supervision.
How this estimate is made
A small deficit is usually more sustainable than aggressive cuts. This tool is not a medical diet.
See the medical disclaimer. Track a plan in the Fitkyn app. Browse all tools or health guides.
Frequently asked questions
Is this medical advice?
No. Results are population estimates. Discuss medical conditions, pregnancy, eating disorders, or medications with a qualified healthcare professional.
Why might my number differ from another site?
Equations, activity factors, and rounding differ. Treat every calculator as a sketch.
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