Tool Desk
Energy estimate
Calorie Calculator
Estimate resting energy and a broad maintenance range. Treat the result as a starting hypothesis that real-world trends must test.
Interpret the estimate
How to use this result responsibly
This tool estimates resting energy with the Mifflin–St Jeor equation, then applies an activity factor to produce a broad maintenance range. It does not measure metabolism or prescribe intake.
Worked example
If the midpoint is 2,100 kcal, treat it as a hypothesis. Observe appetite, energy, training, and longer-term weight trends before making a small adjustment rather than treating the output as exact.
Important limitations
- Activity categories compress large differences in occupation, training, and daily movement.
- Pregnancy, growth, illness, medication, and adaptive changes require different interpretation.
- Food labels and tracking also contain error, so false precision compounds quickly.