Calorie needs by age and weight
Basal metabolic rate by age and weight, at a height of 175 cm. Multiply by an activity level to get daily energy use.
| Weight | 20 y | 30 y | 40 y | 50 y | 60 y | 70 y |
|---|---|---|---|---|---|---|
| 55 kg, men | 1549 | 1499 | 1449 | 1399 | 1349 | 1299 |
| 55 kg, women | 1383 | 1333 | 1283 | 1233 | 1183 | 1133 |
| 70 kg, men | 1699 | 1649 | 1599 | 1549 | 1499 | 1449 |
| 70 kg, women | 1533 | 1483 | 1433 | 1383 | 1333 | 1283 |
| 85 kg, men | 1849 | 1799 | 1749 | 1699 | 1649 | 1599 |
| 85 kg, women | 1683 | 1633 | 1583 | 1533 | 1483 | 1433 |
| 100 kg, men | 1999 | 1949 | 1899 | 1849 | 1799 | 1749 |
| 100 kg, women | 1833 | 1783 | 1733 | 1683 | 1633 | 1583 |
How to read this chart
- Find your weight and equation set on the left, then read across to your age.
- These are basal rates — what the body uses at complete rest. They are not intake targets.
- BMR falls by about 5 kcal per year of age in this equation, which is why the figures shrink to the right.
Work it out for your own numbers
This chart is computed from the same equations as the calculator, so the two always agree.