THE CALORIE & MACRO EXPLORER

Explore your energy needs.

An educational estimate, with assumptions you can see. Explore a range rather than chase one perfect number.

Start with the basics.

UnitsAge · yearsWeight · kgHeight · cmEquation reference coefficientHistorical sex-specific categories in the model; they do not fully represent body composition or hormone status.Overall activity, including daily movementScenario to explore

I am 18 or older, not pregnant or breastfeeding, and am not using this for a medically prescribed diet or eating-disorder support. I understand it is educational, not a personal prescription.

All calculations stay in your browser. No health data is uploaded or saved.

Understand the assumptions.

Resting-energy estimate: 10 × kg + 6.25 × cm − 5 × age + coefficient. Activity bands and deficit/surplus percentages are ikaivibe modeling assumptions, not validated confidence intervals. True needs may lie outside the range.

The tool excludes under-18s and does not provide clinical nutrition advice. A deficit is suppressed for BMI below 18.5; a higher BMI does not establish that a deficit is appropriate. Persistent fatigue, dizziness, menstrual changes or distress around food are reasons to seek professional help.

Read the full guide to TDEE & uncertainty · English