Calorie Calculator
Your entries are calculated in this browser and are not saved by this tool.
This result is an estimate and does not diagnose, prevent or treat any condition. Consult a qualified health professional.
How the Calorie Calculator works
Estimate daily calorie needs using Mifflin–St Jeor and an activity multiplier. Enter the requested values in the tool above, select Calculate, and review both the main result and its breakdown.
Formula used
Mifflin–St Jeor BMR is multiplied by the selected activity factor, then the explicit goal adjustment is applied.
Worked example
Two people with the same size may have different real needs; the result is a planning estimate.
Practical uses
- Estimate maintenance calories
- Plan a nutrition discussion
- Compare activity assumptions
Assumptions and limits
Health results are screening estimates, not a diagnosis. Individual needs and clinical circumstances can differ. For reproducibility, record the inputs and assumptions used when sharing a result.
Frequently asked questions
Is this calculator free?
Yes. It can be used without creating an account.
Are the values I enter stored?
The calculation runs in your browser. The core tool does not submit your calculator entries to WordPress.
Can I rely on the result for a major decision?
Use it as an educational estimate, verify important inputs, and seek qualified advice when the decision carries financial, medical, tax or legal consequences.