Tools

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

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

Diabetes & Metabolism

21. Diabetes UK “Know Your Risk” Tool
22. HbA1c Unit Converter (Old % to New mmol/mol)
23. Blood Sugar Unit Converter (mg/dL to mmol/L)
24. HOMA-IR (Insulin Resistance Estimator)
25. Gestational Diabetes Risk Score
26. Carbohydrate Counting Tool (For Type 1 management)
27. Insulin Sensitivity Factor (ISF) Calculator
28. Insulin-to-Carb Ratio (ICR) Tool

Lifestyle, Mental Health & Habits

29. NHS Quit Smoking Savings Calculator
30. Alcohol Unit Calculator (UK Chief Medical Officers’ guidelines)
31. Drink-Drive Limit Estimator (Safety guide only)
32. Sleep Cycle Calculator (Based on REM stages)
33. Physical Activity Calorie Burner (Walking, cycling, etc.)
34. Couch to 5K Progress Tracker
35. Daily Water Intake Requirement
36. PHQ-9 Depression Severity Score (Used by NHS GPs)
37. GAD-7 Anxiety Severity Score
38. AUDIT-C (Alcohol use identification)

Women’s Health & Pregnancy

39. NHS Pregnancy Due Date Calculator
40. Ovulation & Fertility Window Tracker
41. Conception Date Calculator
42. Pregnancy Weight Gain Estimator
43. Menopause Symptom Checker
44. Breast Cancer Risk (Gail Model)
45. Bishop Score (Likelihood of successful induction)
46. Fetal Growth Centile Tool

Respiratory & General Medicine

47. Peak Flow Normal Values (Based on age/height)
48. CAT Score (COPD Assessment Test)
49. Borg Scale (Perceived exertion/shortness of breath)
50. Wells Score (DVT/Pulmonary Embolism risk)
51. GFR (Glomerular Filtration Rate) (Kidney function tool)
52. Urea/Creatinine Ratio Tool
53. FRAX Tool (Fracture/Osteoporosis risk)
54. Epworth Sleepiness Scale (Sleep apnea risk)
55. Briston Stool Scale Guide

Nutrition & Vitamins

56. Calcium Intake Calculator (Royal Osteoporosis Society)
57. Vitamin D Dosage Guide (UK winter guidelines)
58. Iron Intake Estimator
59. Caffeine Intake Calculator
60. Omega-3 Index Tool

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.