Health

Adult Daily Energy Scenario Calculator

Estimate adult daily energy use and inspect an optional arithmetic scenario using visible assumptions.

MyToolPantry.comAdult Daily Energy Scenario Calculator

Adult Daily Energy Scenario Calculator result

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Whole age in years (18+)Weight (lb)Height (in)Activity-factor assumptionOptional energy scenario adjustment (calories/day)

Estimated daily energy use2,228 calories/dayAdjusted planning scenario2,228 calories/dayEntered scenario adjustment0 calories/dayEstimated BMR1,437 calories/day

Adult BMR uses the published Mifflin-St Jeor equation. Daily energy use is a scenario equal to BMR × the selected conventional activity factor. The optional adjustment is displayed as arithmetic only; it is not a recommended deficit, surplus, intake target, or prediction of weight change. Actual needs vary substantially. Do not use this tool as a diet prescription; pregnancy, illness, eating-disorder concerns, youth, or medically supervised nutrition require qualified care.

For adults only. Entries stay in this page and are not saved or sent to an account.

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How this tool works

The tool estimates adult resting energy expenditure with the Mifflin-St Jeor equation: 10 × kg + 6.25 × cm − 5 × whole age + 5 for the male equation or −161 for the female equation. Estimated maintenance calories then equal that BMR × the explicitly selected 1.2–1.9 planning factor; the activity factors are not part of the Mifflin study.

Limits to know

The activity multiplier is a visible planning assumption layered onto Mifflin-St Jeor BMR, not a measured energy requirement or part of the cited Mifflin study. Metabolism, body composition, pregnancy, illness, medication, training load, and tracking error can change actual needs; do not use this as a diet prescription.