UK health reference
UK BMI / Calorie Calculator
Estimate adult BMI category, BMR, and daily maintenance calories. This does not replace NHS or clinician advice.
Main result
CalculatingNHS adult BMI reference; Mifflin-St Jeor BMR estimate.Calculation Basis and Official Sources
Uses NHS adult BMI reference guidance and a common BMR equation for rough calorie planning.
Official rules change often. Before filing, borrowing, signing, paying or relying on a result, check GOV.UK, HMRC, your lender, contract party or a qualified adviser.
This calculator is a general screening and planning reference only. It is not medical advice, diagnosis, treatment, nutrition advice, legal advice, tax advice, insurance advice or any other professional advice.
BMI and calorie estimates can be unsuitable for children, pregnancy, older adults, athletes, disability, medication use, eating disorders, chronic illness or individual medical history. Use NHS guidance and consult a GP, midwife, dietitian or other qualified health professional before making health decisions.
Calcitda does not guarantee accuracy, completeness, timeliness or suitability. To the fullest extent permitted by law, Calcitda and its operator are not responsible for losses, injuries, claims or decisions arising from use of, or reliance on, this calculator. Nothing here limits liability that cannot legally be limited.