BMR Calculator formula source
For BMR Calculator, the basal estimate uses the Mifflin–St Jeor equation; the calorie page then multiplies it by the selected activity factor.
Calculate BMR with the browser-side formula documented on this page.
For BMR Calculator, the basal estimate uses the Mifflin–St Jeor equation; the calorie page then multiplies it by the selected activity factor.
For BMR Calculator, use the exact units printed beside every field; the implementation performs no automatic unit detection or conversion.
For BMR Calculator, the underlying Mifflin equation was derived from healthy adults; this simple page does not establish suitability for children, pregnancy, illness, athletes, or clinical nutrition.
Worked input: Weight (kg) = 70; Height (cm) = 170; Age = 30 BMR Calculator expected result: 1618 kcal/day To verify BMR Calculator, reproduce its worked example and compare the displayed or downloaded health estimate with the stated expected result. When BMR Calculator returns a file, open the download and inspect every affected page or image.
For BMR Calculator, the equation omits medical history, medications, laboratory findings, body composition, measurement error, and other factors a health professional may use.
For BMR Calculator, the result is general information only, not a diagnosis, treatment plan, medical device output, emergency service, or substitute for individualized advice from a qualified health professional.
BMR Calculator runs the formula operation in the current browser session. BMR Calculator reads and processes the supplied values in the current browser and does not submit them to an application endpoint. Browser extensions, device security and any manual sharing or download from BMR Calculator remain outside the tool’s control.
Continue the workflow
BMR Calculator is part of the Health Tools section. Use the nearby pages below when the same job needs checking, cleanup, conversion, formatting, or a different output before you finish.