Table 1.

Equations for predicting RMR in kcal/d^*

Equation	Reference population	Prediction equation
Harris–Benedict(10)	n 239 (136 males and 103 females)	Female: 665⋅09 + 9⋅56 × weight + 1⋅84 × height – 4⋅67 × age Male: 66⋅47 + 13⋅75 × weight + 5⋅0 × height – 6⋅75 × age
Henry(8)	n 10 552 (5794 males and 4702 females)	Female (age between 18 and 30 years): 13⋅1 × weight + 558 Female (age between 30 and 60 years): 9⋅74 × weight + 694 Male (age between 18 and 30 years): 16⋅0 × weight + 545 Male (age between 30 and 60 years): 14⋅2 × weight + 593
Mifflin–St Jeor(9)	n 498 (251 males and 248 females)	Female: 9⋅99 × weight + 6⋅25 × height – 4⋅92 × age – 161 Male: 9⋅99 × weight + 6⋅25 × height – 4⋅92 × age + 5
Owen(11,12)	n 104 (60 males and 44 females)	Female: 795 + 7⋅18 × weight Male: 879 + 10⋅2 × weight
Schofield(7)	n 7173 males and females	Female (age between 18 and 30 years): 14⋅818 × weight + 486⋅6 Female (age between 30 and 60 years): 8⋅126 × weight + 845⋅6 Male (age between 18 and 30 years): 15⋅057 × weight + 692⋅2 Male (age between 30 and 60 years): 11⋅472 × weight + 873⋅1

^*To convert kcal to kJ, multiply by 4·184.