Free Health & Wellness Calculators
Science-backed tools to help you understand your health, nutrition, and mental wellness. 27+ free calculators with instant, private results — no sign-up required.
Why Use Our Health Calculators?
- Science-Backed Accuracy – All calculators use established medical formulas from CDC, NIH, WHO, and clinical research.
- 27+ Free Health Tools – Physical health, mental wellness, nutrition, and lifestyle assessments in one place.
- Instant, Private Results – Get results immediately. No data stored. Your health info stays private.
- Easy to Understand – Results explained in plain English with clear next steps.
Calculator Categories
Explore our health and wellness tools organized by category.
Physical Health Calculators
A1C, Blood Pressure, Body Fat, BMR, Heart Rate
Mental Health Assessments
Depression, Anxiety, Self-Esteem, Burnout
Nutrition Calculators
Calories, Macros, Hydration, Weight Management
Lifestyle & Specialized
Sleep, Pregnancy, Work-Life Balance, Alcohol Screening
NPI Lookup
Find Healthcare Provider Information
View All Calculators
Browse All 27+ Health Tools
Physical Health Calculators
Monitor your key health metrics with clinical-grade calculators based on established medical guidelines.
Mental Health Assessments
Clinically validated screening tools used by healthcare professionals worldwide. These self-assessments can help you understand your mental wellness.
Nutrition & Fitness Calculators
Plan your nutrition with precision using evidence-based formulas recommended by nutrition experts.
Lifestyle & Specialized Tools
Assess your quality of life with tools for sleep, pregnancy, work-life balance, and clinical assessments.
How Our Calculators Work
- Step 1: Choose Your Calculator – Browse 27+ tools organized by category. Each targets a specific health metric.
- Step 2: Enter Your Information – Answer simple questions or enter your measurements. All data stays in your browser.
- Step 3: Get Your Results – Receive instant results with plain-English explanations and recommended next steps.
Why Trust Our Calculators?
- Evidence-Based Formulas – Every calculator uses established medical formulas and validated clinical scales. Sources include CDC, NIH, WHO, American Heart Association, and American Diabetes Association.
- Your Privacy Protected – All calculations run in your browser. We don’t collect, store, or share any health data you enter.
- Clinically Validated Tools – Mental health assessments (PHQ-9, GAD-7, Beck Depression Inventory) are the same validated instruments used by healthcare professionals.
- Regularly Updated – Our calculators are reviewed regularly to ensure accuracy with current clinical guidelines.
Most Popular Calculators
Start with one of our most-used health tools:
- A1C Calculator – Convert A1C percentage to estimated average glucose. Based on the ADAG study formula.
- Blood Pressure Calculator – Check if your BP is normal, elevated, or high per AHA guidelines.
- PHQ-9 Depression Screening – Clinically validated 9-question depression assessment.
- Pregnancy Due Date Calculator – Calculate due date, trimester, and week-by-week milestones.
- Daily Calorie Calculator – Find your exact calorie needs using the Mifflin-St Jeor equation.
- GAD-7 Anxiety Assessment – 7-question generalized anxiety screening tool.
About MDCodeLookup.com
We build free, science-backed health calculators that help people understand their health better. Every tool on this site is based on established medical research and validated clinical scales. Our mission is to make health information accessible, easy to understand, and free for everyone. Learn more about us.