The Ireton Jones Calculator is a fundamental tool used to estimate an individual’s Resting Energy Expenditure (REE) or basal metabolic rate (BMR). This metric helps in understanding the number of calories the body needs at rest to maintain vital functions like breathing, circulation, and cell production.
Formula of Ireton Jones Calculator
For Males: REE (kcal/day) = (879 + (10.2 x weight in kg) + (6.25 x height in cm) – (5.68 x age in years))
For Females: REE (kcal/day) = (795 + (7.18 x weight in kg) + (3.29 x height in cm) – (4.86 x age in years))
General Terms Table
| Term | Description |
|---|---|
| Resting Energy Expenditure (REE) | The calories burned at rest |
| Basal Metabolic Rate (BMR) | The minimum energy needed for basic functions |
| Kilograms (kg) | Measurement of weight |
| Centimeters (cm) | Measurement of height |
| Calories (kcal) | Measurement of energy |
This table provides general terms related to REE and associated measurements, aiding users in understanding the terminology involved.
Example of Ireton Jones Calculator
Consider a 30-year-old male with a weight of 75 kg and a height of 180 cm. Plugging these values into the Ireton Jones formula:
REE = 879 + (10.2 x 75) + (6.25 x 180) – (5.68 x 30) = 879 + 765 + 1125 – 170.4 = 2598.6 kcal/day
This calculation demonstrates how to apply the formula to estimate the individual’s daily caloric needs.
Most Common FAQs
Resting Energy Expenditure (REE) refers to the amount of energy the body requires while at rest for essential physiological functions.
The Ireton Jones formula provides a reasonable estimation of REE but may not reflect precise individual variations. It serves as a useful starting point for determining caloric needs.
Understanding your REE can help in setting a baseline for caloric intake. However, individual factors like activity level, metabolism, and health conditions should also be considered for diet planning.