HEALTH REFERENCES WITH CLEAR LIMITS
Calorie Needs Calculator
Estimate basal and daily calorie needs from age, sex, height, weight, and typical activity level.
Review your result
Your result
Ready when you are.
Enter your values and select Calculate. Your result stays on this device.
How it works
Mifflin–St Jeor estimates BMR; daily calories = BMR × selected activity factor.
Assumptions
Adult estimate only. It does not account for pregnancy, illness, medication, body composition, or individual clinical needs.
Use case
calorie needs calculator: a clear planning check
Use current measurements and activity information, then discuss individual needs with a qualified clinician or dietitian when health decisions are involved.
Estimate a general daily calorie reference from the information you enter, not a medical prescription.
Source and update
Last reviewed: 2026-08-08
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