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9 reviewed tools in Weight and nutrition
BMI calculator: adult BMI and reference chart
Calculate adult BMI in metric, pounds or stone, see height-specific reference points, and understand the result's limits. Free, private and evidence-based.
Open toolFreeWeight and nutritionCalories per meal calculator
Split a daily calorie or kilojoule amount equally or by your own percentages. Whole-number meal results always add back to your exact total.
Open toolFreeWeight and nutritionDaily calorie needs calculator: energy requirement and resting estimate
Estimate adult daily energy with the 2023 DRI equation and see a separate MifflināSt Jeor resting estimate in kcal and kJ.
Open toolFreeWeight and nutritionKilograms to pounds converter
Convert one body-weight or training-weight value between kilograms (kg) and international avoirdupois pounds (lb), without judging the weight or calculating a dose.
Open toolFreeWeight and nutritionKilojoules to calories converter
Convert food energy between kilojoules (kJ) and kilocalories (kcal) using the exact 4.184 factor, with clear units and private on-device calculation.
Open toolFreeWeight and nutritionSodium to salt converter
Convert food-label sodium in milligrams to salt equivalent in grams, or salt grams back to sodium, using the standard 2.5 factor.
Open toolFreeWeight and nutritionWaist-to-height ratio calculator (WHtR)
Calculate your waist-to-height ratio and equivalent percentage in centimetres or inches. See careful measurement guidance and limitations without a risk label.
Open toolFreeWeight and nutritionWaist-to-hip ratio calculator (WHR)
Calculate an adult waist-to-hip ratio in centimetres or inches, with clear tape-measure guidance, uncertainty and no automatic health-risk label.
Open toolFreeWeight and nutritionWeight loss percentage calculator
Calculate weight change as a percentage of your starting weight. See the amount and whether the current value is lower, higher or unchanged.
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