Health · Utility calculator
Calorie Deficit Timeline
Find out how long your weight loss goal will actually take based on your daily calorie deficit.
Instant result
Plain-English why
Copyable takeaway
What this means
Calculates TDEE using the Mifflin-St Jeor equation and standard activity multipliers, then divides total deficit required by your weekly deficit.
Formula used
TDEE = Mifflin-St Jeor x activity_multiplier. Weeks = (kg x 7700) / (daily_deficit x 7).
Worked example
To lose 10kg at a 600 kcal/day deficit from a TDEE of 2749, you need to eat 2149 kcal/day for 19 weeks.
Common questions
Can I use this internationally?
Yes. Currency selectors are display-only unless a tool explicitly says otherwise; no currency conversion is performed.
How exact is the result?
It follows the published Technofatty formula for this tool, but real life can add fees, rules, timing quirks, and context.
Plain-English summary
TDEE: 2,749 kcal. Target intake: 2,149 kcal/day. At 600 kcal deficit: 19 weeks to goal. At 500 kcal (recommended): 22 weeks.
This section translates the result into a short, direct takeaway rather than leaving the page at a bare number.
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