Depending on the exercise level chosen, the BMR will be multiplied by anything from 1.2 to 1.9. The results tend to be skewed towards both obese and young people 3.Ħ6.5 + (13.75 X weight in kg) + (5.003 X height in cm) – (6.775 X age inĦ55.1 + (9.563 X weight in kg) + (1.85 X height in cm) – (4.676 XĪge in years) Estimating Calories for Weight LossĪfter calculating the BMR, exercise is factored in. This formula was created in 1919, and due to changing lifestyles, it tends to overstate calorie needs by 5%.
BMR CALCULATOR MIFFLIN ST JEOR FREE
Where Fat Free Mass = Weight – (Body Fat Percentage * Weight). This is more accurate for those who are leaner (and who know their body fat percentage!). It is a variation 1 on the basic Mifflin-St Jeor equation that will base the equation on Fat Free Mass (FFM) or Lean Mass. The Mifflin-St Jeor was found to be the most accurate.ġ0 x weight (kg) + 6.25 x height (cm) – 5 x age (y) + 5ġ0 x weight (kg) + 6.25 x height (cm) – 5 x age (y) – 161. The ADA (American Dietetic Association) published a comparison of various equations 2. The calculator currently uses the formula proposed by MD Mifflin and ST St Jeor 1. One individual may burn 100 calories on a 10 minute run – another individual may burn 110 calories. Once again these are best guesses based on contemporary research. Once BMR has been estimated, various “activity” factors are applied. Other terms synonymous with BMR are Resting Metabolic Rate (RMR) and Resting Energy Expenditure (REE). This is effectively the amount of energy expended per day.īMR is a measure of only the most basic functions (effectively the same as if you rested in bed the whole day). Estimating BMRĬalorie calculators will first estimate Basal Metabolic Rate (BMR). In this situation all weight loss calorie levels are blanked out. You can also choose BMR (Basal Metabolic Rate) in the Exercise level.
Can also select an older formula (Harris-Benedict).Uses Mifflin-St Jeor formula (most recent).
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