Health
Calorie Calculator
How to use this calorie calculator
- Enter the requested values in the calculator.
- Review the result immediately below the fields.
- Use the explanation and example below to check how the result was obtained.
Method and formula
The calculator applies the Mifflin–St Jeor equation to age, height, weight, and sex, then multiplies BMR by the selected activity factor.
Worked example
Maintenance calories are an estimate of average daily energy needs. Tracking weight over several weeks gives better feedback than treating one calculated number as exact.
What the result does not include
This is general educational information, not medical or nutritional advice. Pregnancy, illness, medications, and individual metabolism can materially change energy needs.
Frequently asked questions
Are the calculations saved?
No. The calculation runs in your browser. This site does not receive or store the numbers and dates entered into a calculator.
Why can another calculator show a slightly different result?
Results can differ because of rounding, input units, timing assumptions, or extra fees and variables. Keep full precision until the final step and compare the assumptions used by each source.
Can I use this result for an official decision?
Use it as an educational estimate and a way to check your own arithmetic. For medical, financial, academic, or legal decisions, confirm the result with the relevant professional or institution.