Tools

Explore our curated directory of over 120 professional-grade online calculators, designed to provide precise insights into your health, fitness, and nutritional needs. Each tool is developed using peer-reviewed scientific formulas and expert-verified data to ensure clinical accuracy for our users. From tracking your metabolic health and body composition to planning bespoke workout regimes, our extensive collection empowers you to make informed, data-driven decisions about your wellbeing. We prioritise transparency and reliability, ensuring every calculation serves as a trusted resource on your journey toward a healthier lifestyle.

Health & Fitness

  1. BMI calculator
  2. Men BMI calculator
  3. Women BMI calculator
  4. Calorie calculator
  5. Pregnancy calculator
  6. Ovulation calculator
  7. Period calculator
  8. BMR calculator
  9. TDEE calculator
  10. Macro calculator
  11. Protein calculator
  12. Fertility calculator
  13. Weight calculator
  14. Height calculator
  15. Bodyfat calculator
  16. Heartrate calculator
  17. Step calculator
  18. Sleep calculator
  19. Conception calculator
  20. BAC calculator (Blood Alcohol)
  21. Carb calculator
  22. Growth calculator

Body Composition & BMI

  1. NHS Adult BMI Calculator (Standard UK version)
  2. NHS Child & Teen BMI Calculator (Centile-based)
  3. Waist-to-Height Ratio (WHtR) Calculator (UK “Half your height” rule)
  4. Body Fat Percentage Estimator (US Navy method adapted)
  5. Basal Metabolic Rate (BMR) – Mifflin-St Jeor
  6. Total Daily Energy Expenditure (TDEE)
  7. Ideal Body Weight (Devine Formula)
  8. Lean Body Mass (LBM) Calculator
  9. Body Surface Area (BSA) Calculator (Used for UK drug dosing)
  10. Ponderal Index (Alternative to BMI for newborns/tall adults)

Cardiovascular & Heart Health

  1. NHS Heart Age Test
  2. QRISK®3 Predictor (The UK standard for 10-year heart risk)
  3. Blood Pressure Category Checker (NHS Blood Pressure UK)
  4. Cholesterol (LDL/HDL) Ratio Tool
  5. CHA₂DS₂-VASc Score (Stroke risk in atrial fibrillation)
  6. HAS-BLED Score (Major bleeding risk tool)
  7. Mean Arterial Pressure (MAP) Calculator
  8. Ankle-Brachial Index (ABI) Tool (For peripheral artery disease)
  9. Target Heart Rate Zone Calculator (Aerobic/Anaerobic)
  10. VO2 Max Estimator (Beep test or 12-min run)

Diabetes & Metabolism

  1. Diabetes UK “Know Your Risk” Tool
  2. HbA1c Unit Converter (Old % to New mmol/mol)
  3. Blood Sugar Unit Converter (mg/dL to mmol/L)
  4. HOMA-IR (Insulin Resistance Estimator)
  5. Gestational Diabetes Risk Score
  6. Carbohydrate Counting Tool (For Type 1 management)
  7. Insulin Sensitivity Factor (ISF) Calculator
  8. Insulin-to-Carb Ratio (ICR) Tool

Lifestyle, Mental Health & Habits

  1. NHS Quit Smoking Savings Calculator
  2. Alcohol Unit Calculator (UK Chief Medical Officers’ guidelines)
  3. Drink-Drive Limit Estimator (Safety guide only)
  4. Sleep Cycle Calculator (Based on REM stages)
  5. Physical Activity Calorie Burner (Walking, cycling, etc.)
  6. Couch to 5K Progress Tracker
  7. Daily Water Intake Requirement
  8. PHQ-9 Depression Severity Score (Used by NHS GPs)
  9. GAD-7 Anxiety Severity Score
  10. AUDIT-C (Alcohol use identification)

Women’s Health & Pregnancy

  1. NHS Pregnancy Due Date Calculator
  2. Ovulation & Fertility Window Tracker
  3. Conception Date Calculator
  4. Pregnancy Weight Gain Estimator
  5. Menopause Symptom Checker
  6. Breast Cancer Risk (Gail Model)
  7. Bishop Score (Likelihood of successful induction)
  8. Fetal Growth Centile Tool

Respiratory & General Medicine

  1. Peak Flow Normal Values (Based on age/height)
  2. CAT Score (COPD Assessment Test)
  3. Borg Scale (Perceived exertion/shortness of breath)
  4. Wells Score (DVT/Pulmonary Embolism risk)
  5. GFR (Glomerular Filtration Rate) (Kidney function tool)
  6. Urea/Creatinine Ratio Tool
  7. FRAX Tool (Fracture/Osteoporosis risk)
  8. Epworth Sleepiness Scale (Sleep apnea risk)
  9. Briston Stool Scale Guide

Nutrition & Vitamins

  1. Calcium Intake Calculator (Royal Osteoporosis Society)
  2. Vitamin D Dosage Guide (UK winter guidelines)
  3. Iron Intake Estimator
  4. Caffeine Intake Calculator
  5. Omega-3 Index Tool

Others Popular Calculators

  1. Adult BMI Calculator
  2. ASCVD Risk Calculator
  3. BMI Calculator Singapore
  4. BMR Calorie Calculator
  5. BMR TDEE Calculator
  6. BMR Weight Loss Calculator
  7. BMI Calculator Teen
  8. Body Fat Percentage Calculator
  9. Bulking Calorie Calculator
  10. Biking Calorie Calculator
  11. Baby Due Date Calculator
  12. CRCL Calculator
  13. Conception Calculator
  14. Childs BMI Calculator
  15. Cat Due Date Calculator
  16. Cat Feeding Calculator
  17. Child Maintenance Calculator
  18. Calorie Burner Calculator
  19. Calorie Needs Calculator
  20. Calorie Requirement Calculator
  21. Calorie Expenditure Calculator
  22. Calorie Weight Loss Calculator
  23. Calorie Deficit Calculator
  24. Dog Heat Cycle Calculator
  25. Dog Calorie Calculator
  26. Panda Calorie Calculator
  27. Pet Calorie Calculator
  28. Dog Due Date Calculator
  29. Dog Pregnancy Calculator
  30. Dog BMI Calculator
  31. Daily Calorie Intake Calculator
  32. Dog Life Expectancy Calculator
  33. Dog Ovulation Calculator
  34. DPO Calculator
  35. Steroid Cycle Calculator
  36. Numerology Calculator
  37. Implantation Calculator
  38. Pregnancy Test Calculator
  39. Prevent ASCVD Calculator
  40. Health Insurance Calculator
  41. Postpartum Calorie Calculator
  42. Incline Walk Calorie Calculator
  43. Indian Food Calorie Calculator
  44. Step Calorie Calculator
  45. Treadmill Calorie Burn Calculator
  46. Hiking Calorie Calculator
  47. Meal Calorie Calculator
  48. Macro Calorie Calculator
  49. Sleep Cycle Calculator
  50. Peptide Calculator
  51. Raw Dog Food Calculator
  52. KEGG Fertility Tracker
  53. San Francisco BMR Calculator

Specialist Tools

Musculoskeletal:

  • Arthritis prevalence tools,
  • Gait analysis calculators,
  • Sarcopenia (muscle loss) risk.

Pediatric Specialists:

  • Height predictors, Growth Velocity,
  • Pediatric GCS, APGAR Score,
  • Dehydration assessment.

Geriatric Care:

  • Falls Risk Assessment (FRAT),
  • Malnutrition Universal Screening Tool (MUST),
  • Dementia screening scores.

Oncology & Mortality:

  • ONS Life Expectancy Calculator,
  • Prostate Cancer UK Risk Tools,
  • Palliative performance scales.
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