BMI Calculator
Calculate your Body Mass Index and its WHO classification.
Heart Rate Zones Calculator
Calculate your training zones with Karvonen.
Publicidad / Advertisement
⚠️ This calculator is for guidance only. It does not replace medical diagnosis or advice from a healthcare professional.
The heart rate zones calculator estimates the 5 intensity ranges that guide your training (recovery, endurance, aerobic, threshold and max), using Karvonen's formula over your heart rate reserve. You only need your age and, if you know it, your resting heart rate. Great for runners and cyclists training by pulse. It is an estimate: it does not replace an exercise test or a healthcare professional. Use it as many times as you need: it is completely free, requires no sign-up and works directly in your browser.
Frequently asked questions
¿Qué es la frecuencia cardíaca máxima?
Es la mayor cantidad de latidos por minuto que tu corazón puede alcanzar. La fórmula 220 − edad es una estimación general; solo una prueba de esfuerzo da el valor real.
¿Qué es la fórmula de Karvonen?
Calcula la frecuencia objetivo usando tu reserva cardíaca (FC máxima − FC en reposo). Es más personalizada que usar solo porcentajes de la FC máxima.
¿En qué zona debo entrenar?
Depende de tu objetivo: las zonas 1-2 construyen base aeróbica, la 3 mejora resistencia, y las 4-5 son para trabajo de intensidad y velocidad.
What is maximum heart rate?
It is the highest number of beats per minute your heart can reach. The 220 − age formula is a general estimate; only an exercise test gives the real value.
What is Karvonen's formula?
It calculates your target rate using your heart rate reserve (max HR − resting HR). It is more personalized than using only percentages of max HR.
Which zone should I train in?
It depends on your goal: zones 1-2 build aerobic base, zone 3 improves endurance, and zones 4-5 are for intensity and speed work.