The Schofield Equation Calculator is designed to compute your BMR using specific biological inputs. BMR represents the number of calories your body requires to maintain basic life functions at rest. This calculation is pivotal for anyone looking to manage their dietary intake based on scientific insights rather than guesswork.
Formula of Schofield Equation Calculator
The formula for BMR calculation varies slightly between genders, accounting for differences in body composition:
Men: BMR = 88.362 + (13.397 × weight in kg) + (4.799 × height in cm) – (5.677 × age in years)
Women: BMR = 447.593 + (9.247 × weight in kg) + (3.098 × height in cm) – (4.330 × age in years)
Here are some important notes for using this formula:
- Weight (W) should always be in kilograms.
- Height (H) is optional, though including it can enhance accuracy.
- Results are estimative and may require adjustments based on muscle mass and body fat percentage.
Useful Conversion Table
To facilitate the accurate input of measurements for using the Schofield Equation Calculator, here’s a detailed conversion table:
| From (unit) | To (unit) | Conversion Factor |
|---|---|---|
| Pounds (lbs) | Kilograms (kg) | 1 lb = 0.453592 kg |
| Ounces (oz) | Kilograms (kg) | 1 oz = 0.0283495 kg |
| Inches (in) | Centimeters (cm) | 1 in = 2.54 cm |
| Feet (ft) | Centimeters (cm) | 1 ft = 30.48 cm |
This table ensures that users can convert common U.S. measurements into the metric units required by the Schofield Equation.
Example of Schofield Equation Calculator
Calculating BMR for Jane Doe:
Profile:
- Gender: Female
- Age: 30 years
- Weight: 154 pounds (70 kg after conversion)
- Height: 5 feet 5 inches (165 cm after conversion)
Schofield Equation for Women: BMR=447.593+(9.247×weight in kg)+(3.098×height in cm)−(4.330×age in years)
Calculations:
- Convert weight: 154 lbs → 70 kg (using 1 lb = 0.453592 kg)
- Convert height: 5 ft 5 in → 65 in → 165 cm (using 1 in = 2.54 cm)
Plug into formula:
BMR=447.593+(9.247×70)+(3.098×165)−(4.330×30)
BMR=1476.153 kcal/day
Result: Jane Doe’s estimated Basal Metabolic Rate (BMR) is approximately 1476 kcal/day, which is the number of calories she would need to consume daily to maintain her current weight at rest. This calculation provides a base for further dietary planning and adjustments based on activity level and health goals.
Most Common FAQs
Yes, height is optional but recommended for better accuracy.
Recalculate your BMR annually or with significant changes in weight, height, or age.