TDEE Calculator UK: Calculate Your Daily Calorie Needs Use our free TDEE calculator UK to estimate how many calories your body burns each day. Enter your age, weight, height and activity level to calculate your total daily energy expenditure. Total daily energy expenditure, commonly called TDEE, is an estimate of the energy your body uses over 24 hours. It includes the energy needed for essential bodily functions, physical activity and digestion. Our calculator uses the Mifflin-St Jeor equation to estimate resting energy expenditure and then applies an activity multiplier to estimate your daily maintenance calorie requirements. Free TDEE Calculator Enter your measurements and select the activity level that most closely represents your typical week. Measurement units Metric (kg and cm) Imperial (stone, pounds, feet and inches) Sex used by the equation Male Female The equation uses sex-specific coefficients. Its estimates may be less accurate fo...

BMR Calculator UK: Calculate Your Basal Metabolic Rate Use our free BMR calculator UK to estimate how many calories your body burns at rest. Enter your age, height, weight and sex used by the equation to calculate your basal metabolic rate using the Mifflin-St Jeor formula. The calculator also estimates your total daily energy expenditure (TDEE), helping you understand how your activity level affects your daily calorie requirements. Free BMR Calculator Enter your measurements below to estimate your basal metabolic rate. Measurement units Metric (kg and cm) Imperial (stone, pounds, feet and inches) Sex used by the equation Male Female The Mifflin-St Jeor equation uses sex-specific coefficients. These estimates may be less accurate for people taking gender-affirming hormones. Age (years) Weight (kg) Height (cm) Weight (stone) Additional pounds Height (feet) Additional inches Activity level Sedentary: l...

← All Pryhelm health calculators BMI Calculator UK: Calculate Your Body Mass Index in kg, Stone or Pounds Use this free BMI calculator UK to work out your adult Body Mass Index using centimetres and kilograms or feet, inches, stone and pounds. Your result includes your BMI number, a general adult weight category and an explanation of how to interpret it. The calculator works directly in your browser, without creating an account. Who is this for? Adults aged 18 and over. Do not use this adult calculator for children, during pregnancy, or if you have an eating disorder or a condition that affects your height. For individual advice, contact your GP or another appropriate healthcare professional. Free adult BMI calculator Calculate your BMI Metric: cm and kg Imperial: ft, in, st and lb Height (cm) Weight (kg) Height (feet) Extra inches Weight (stone) Extra pounds BMI interpretation Standard adult BMI thresholds Lower thresholds for relevant ethnic backgrounds NICE advis...

Sleep-routine planner Sleep Schedule & Wind-Down Window Finder Plan a realistic evening wind-down around your target bedtime and wake-up time. This is a schedule tool—not a calculation of your personal core-temperature minimum, melatonin level or “perfect” sleep window. Build tonight’s sleep routine Usual wake-up time Target lights-out time Your usual sleep need (hours) Preferred wind-down length 30 minutes 60 minutes 90 minutes Find my wind-down window Add your usual times, then select Find my wind-down window . Use a wake-up anchor For many people, a broadly consistent wake-up time is easier to protect than forcing an exact bedtime. Build the evening routine backward from your target lights-out time. Shift work, caring responsibilities, pain, illness and young children can make regular schedules difficult. This is a flexible planning guide, not a judgement. What to do during a wind-down window Time before lights out Simple option 60–90 minutes Finish demanding work where poss...

Daily-energy reflection tool Tired-but-Wired Energy Pattern Tracker Log a few common contributors to daytime fatigue and evening restlessness, then create a manageable reset plan. This tool does not diagnose adrenal fatigue, burnout, anxiety, insomnia or a cortisol problem. Check today’s energy pattern Sleep last night (hours) Caffeine after 2 pm None One drink or serving Two or more servings Your daytime eating pattern Regular meals / snacks suited to me One meal delayed or skipped Several long gaps, skipped meals or little fluid Today’s stress or mental load Low / manageable Moderate High / hard to switch off Bedtime and wake-up timing this week Fairly consistent Some variation Very irregular or shift-work pattern Create my next-step plan Complete the check-in, then select Create my next-step plan . “Tired but wired” is a description, not a diagnosis People use this phrase for a mix of fatigue, alertness at the wrong time, racing thoughts, low motivation or difficulty winding down...