Daily energy calculator
Explore an estimated daily energy need based on body measurements and activity. Use it as a discussion starting point.
For adults 18 and over.
These custom reductions are not a validated PCOS correction. Leave at None unless you and your clinician have a reason to explore a different scenario.
Fill in your details to see your target.
- Resting metabolism (BMR)–
- After optional adjustment–
- Maintenance calories (TDEE)–
- Daily deficit–
- Weight changeNot predicted
This tool is for adults 18 and over. Please speak to a clinician or dietitian first if you are pregnant or breastfeeding, have a history of disordered eating, take medication that affects appetite or blood sugar, or have another medical condition.
These are estimates from the Mifflin-St Jeor equation plus an activity multiplier, not medical advice. Real needs vary from person to person, and weight changes are rarely steady week to week. Slow, sustainable change is the aim.
Talk to your physician. Use these numbers as a starting point for an informed discussion with your physician. They are not a substitute for medical advice.
Sources and how we calculate this. Method: Mifflin MD, et al., A new predictive equation for resting energy expenditure in healthy individuals, American Journal of Clinical Nutrition 1990;51:241-247. Background reading: Teede HJ, et al., International Evidence-based Guideline for PCOS 2023, Monash University. Optional reductions and deficit levels are illustrative choices, not validated PCOS prescriptions.