Calorie Calculator (USA)
Mifflin–St Jeor • US units • Goal presets • Weekly change • Ajax loading • Hard reset
Settings
Switching units converts values once (no weird drift).
Used by the BMR equation.
Quick summary
Enter your details to estimate calories.
Your info
Years
ft
in
We convert ft/in to cm internally.
Pounds
TDEE = BMR × activity factor.
Presets use the 3,500 kcal ≈ 1 lb rule (common US guideline).
Mode
Δ
Custom uses kcal/day delta. (Cut: TDEE−Δ, Bulk: TDEE+Δ)
Results
BMR
—
kcal/day
TDEE (maintenance)
—
kcal/day
Goal calories
—
kcal/day
Estimated weekly change
—
lb/week
Based on (Δ×7)/3500. Negative = loss, positive = gain.
Updating…
Action
Hard reset: cancels pending updates and clears everything on the first click.