Calculate daily calorie needs and BMR using the Mifflin-St Jeor equation
-500 kcal/day
TDEE
+500 kcal/day
Male: 10 x weight + 6.25 x height - 5 x age + 5
Female: 10 x weight + 6.25 x height - 5 x age - 161
A deficit of 500 kcal/day may result in ~0.5 kg loss per week.