Free Health Calculators – 11 Tools for a Healthier Life
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11 Free Health Calculators
Science-based tools for pregnancy, fitness, nutrition, body measurements and sleep. Pick a calculator below for instant results.
11Calculators
5Categories
FreeAlways
ðĪ° Pregnancy
Pregnancy
Pregnancy Due Date Calculator
Find your estimated due date using last period, conception date or IVF transfer. See trimester, weeks pregnant and days remaining.
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Pregnancy
Pregnancy Weight Gain Calculator
Get recommended weight gain based on pre-pregnancy BMI. Covers single babies, twins and triplets with IOM guidelines.
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ð Fitness
Fitness
Running Pace Calculator
Calculate pace per km, speed and projected finish times for 5K, 10K, half and full marathon. Race-day and training planning tool.
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Fitness
Heart Rate Zones Calculator
Find your 5 personalised training zones using Tanaka, Basic or Karvonen formula. Train smarter and burn fat more effectively.
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ðĨ Diet & Nutrition
Nutrition
Water Intake Calculator
How much water should you drink daily? Personalised target based on weight, activity and climate â shown in litres, cups and bottles.
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Nutrition
Protein Requirement Calculator
Your exact daily protein target in grams â tailored to weight, goal and age. Covers muscle gain, fat loss, endurance and strength sports.
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Nutrition
Alcohol Calorie Calculator
How many calories in beer, wine, spirits and cocktails? Plus how much exercise it takes to burn them off â eye-opening results.
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ð Body Measurements
Body
Body Frame Size Calculator
Small, medium or large frame? Determine your bone structure using wrist circumference and understand what it means for your ideal weight.
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Body
Life Expectancy Estimator
How long might you live? Statistical estimate based on smoking, exercise, diet and BMI. See which habits add or subtract years from your lifespan.
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Body
Heart Age Calculator
Is your heart older than your actual age? Estimate cardiovascular age using blood pressure, cholesterol, smoking and diabetes status.
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