Calculators to help you protect your heart
22 tools matched to this goal.
Waist-to-Hip Ratio Calculator
Check where your body stores fat and the related health risk.
Waist-to-Height Ratio Calculator
A simple rule: keep your waist under half your height.
Body Roundness Index Calculator
A shape-based index of visceral fat from waist and height.
Fiber Intake Calculator
Your daily fiber goal and how your intake compares.
Sodium Intake Calculator
Add up sodium across meals and compare with limits.
Target Heart Rate Calculator
Heart rate training zones using the Karvonen method.
Max Heart Rate Calculator
Maximum heart rate from several published formulas.
VO2 Max Calculator
Estimate aerobic fitness from the Cooper 12-minute run.
Heart Rate Recovery Calculator
How quickly your pulse drops one minute after exercise.
Blood Pressure Category Calculator
See which ACC/AHA blood pressure category you fall in.
Mean Arterial Pressure Calculator
Average pressure that perfuses your organs.
Pulse Pressure Calculator
The gap between your top and bottom blood pressure numbers.
Cholesterol Ratio Calculator
Total-to-HDL ratio as a heart risk indicator.
LDL Cholesterol Calculator
Estimate LDL from a standard lipid panel (Friedewald).
Non-HDL Cholesterol Calculator
All the cholesterol carried by harmful particles.
Triglyceride-to-HDL Ratio Calculator
A quick marker of insulin resistance and heart risk.
Corrected QT (QTc) Calculator
Correct the ECG QT interval for heart rate.
Cardiac Output Calculator
Blood pumped per minute and cardiac index.
Rate Pressure Product Calculator
Heart workload from pulse and systolic pressure.
Smoking Cost & Savings Calculator
What smoking costs and what you save by quitting.
Sitting Time Calculator
How much of your waking day you spend sitting.
Pack-Years Calculator
Smoking history and lung cancer screening eligibility.
Other goals
- Lose weight
- Build muscle
- Eat better
- Get fitter
- Protect my heart
- Manage blood sugar
- Pregnancy & fertility
- Care for my child
- Sleep better
- Mental wellbeing
- Cut back on drink, smoke & caffeine
- Understand my lab results
Related guides
Why Belly Fat Matters More Than Weight
Visceral fat sits around organs and drives disease risk. Here is how to measure and reduce it.
Weight & Body CompositionWaist-to-Hip Ratio: Apple, Pear and Your Health
Where you carry fat influences disease risk. Learn how to measure and interpret the ratio.
Nutrition & DietFiber: Benefits, Sources and Daily Goals
Most adults eat only half the fiber they need. See why it matters and how to add it.