Calorie needs at age 58, female
Enter your age, size and activity to see how many calories you use each day. The example below is a woman aged 58 who is 5 ft 4 in tall and weighs 150 lb.
How it works
Start with resting calories from Mifflin-St Jeor. Take 10 times weight in kilograms and add 6.25 times height in centimeters. Subtract 5 times age. Then add 5 for males or subtract 161 for females. Multiply by an activity factor to get daily calories. This 58-year-old woman uses a factor of 1.375 for the lightly active level.
Worked example
For a woman aged 58, weight is 68.04 kg and height is 162.56 cm. Weight gives 10 × 68.04 = 680.4. Height gives 6.25 × 162.56 = 1016. Age takes off 5 × 58 = 290. Subtract 161. Resting calories are 1245.4, or 1245 when rounded. Multiply by 1.375 for the lightly active level to get 1712.4. That rounds to 1712 calories a day.
Maintenance calories at every activity level for the same woman aged 58 at 5 ft 4 in and 150 lb, with the lightly active level set in the form above.
- Sedentary (little or no exercise)
- 1494 calories a day
- Lightly active (light exercise 1 to 3 days a week)
- 1712 calories a day
- Moderately active (moderate exercise 3 to 5 days a week)
- 1930 calories a day
- Very active (hard exercise 6 to 7 days a week)
- 2148 calories a day
- Extra active (very hard exercise and a physical job)
- 2366 calories a day
Common questions
How big a calorie deficit is reasonable for weight loss?
A deficit of 500 calories a day is a common starting point and works out to roughly half a kilogram a week. Smaller deficits are slower and easier to keep up. A 500 calorie deficit here means 1212 calories a day for this 58-year-old woman at the lightly active level.
How big a surplus helps build muscle?
A modest surplus of about 250 calories a day is a common starting point. Larger surpluses tend to add more fat without adding muscle faster. A 250 calorie surplus here means 1962 calories a day for this 58-year-old woman at the lightly active level.
Why does age 58 change the result?
The formula takes 5 calories off for every year of age, which reflects that resting burn tends to fall over time. At 58 that is 290 calories. Without the age term this 58-year-old woman would burn 1535 calories at rest, or 2111 a day at the lightly active level.
How accurate is a calorie estimate?
It is a starting estimate. Track your weight over two or three weeks and adjust the target up or down based on what actually happens. For this 58-year-old woman, a 5 percent error on 1712 calories is 86 calories a day.
What is the difference between BMR and TDEE?
BMR is what your body burns at rest. TDEE adds the calories you use moving and exercising. It is always higher. For this woman aged 58 at 150 lb, BMR is 1245 calories and TDEE at the lightly active level is 1712.