If this tool helped you, you can buy us a coffee ☕
Calculate your maximum heart rate using multiple scientific formulas to help fitness enthusiasts create effective training plans and identify safe target heart rate zones.
Enter your age to calculate maximum heart rate and training zones.
Maximum Heart Rate (MHR) is the highest number of times a person's heart beats per minute during strenuous exercise. It is the basis for determining exercise intensity zones.
Creatinine Clearance Calculator
Enter your age, weight, and serum creatinine to quickly assess your kidney function.
Child Height Predictor Calculator
Predict a child's potential adult height range based on parents' heights and gender, providing parents with a reliable growth trend reference.
SSL Heartbleed Vulnerability Scanner
Online scanner to check websites or servers for the CVE-2014-0160 (Heartbleed) vulnerability and assess SSL/TLS security.
BMR Calculator (Basal Metabolic Rate)
Calculate the minimum daily calories your body needs at rest based on gender, height, weight, and age. Get a scientific reference for your diet and fitness plans.
Creatinine Clearance Calculator
Enter your age, weight, and serum creatinine to quickly assess your kidney function.
Child Height Predictor Calculator
Predict a child's potential adult height range based on parents' heights and gender, providing parents with a reliable growth trend reference.
SSL Heartbleed Vulnerability Scanner
Online scanner to check websites or servers for the CVE-2014-0160 (Heartbleed) vulnerability and assess SSL/TLS security.
BMR Calculator (Basal Metabolic Rate)
Calculate the minimum daily calories your body needs at rest based on gender, height, weight, and age. Get a scientific reference for your diet and fitness plans.
Fetal Weight Calculator
Estimate fetal weight using ultrasound measurements (BPD, AC, FL) with multiple standard obstetric formulas.
Unsure of your safe heart rate limit while exercising? Maximum Heart Rate (MHR) is the highest number of beats per minute your heart can pump under maximum stress, making it a crucial metric for creating a scientific workout plan. By entering your age and selecting from various scientific formulas, this tool quickly calculates your estimated MHR. This helps you properly plan your training intensity and avoid overtraining.
Q: Is there a significant difference between the formulas?
A: Different formulas are designed for specific demographics. For example, the Gulati formula is optimized for women. For a 30-year-old, the variance between formulas is typically within 5-10 BPM.
Q: Are there any age restrictions for the input?
A: The tool only accepts positive integers between 1 and 120. Entering an age outside this range will trigger an error prompt.
The calculated results are for reference only, as actual maximum heart rates vary by individual. Individuals with heart conditions should consult a physician before use. Formula recommendations: The Fox formula is preferred for users under 40, the Tanaka formula is recommended for those over 40, and female users may want to try the Gulati formula.
We recommend using these results alongside a heart rate monitor. For example, you can set your fat-burning zone at 60-70% of your MHR, and your aerobic endurance zone at 75-85%. Typical example: A 30-year-old male using the Fox formula has an MHR of 190 BPM, making his fat-burning zone 114-133 BPM. Using the Tanaka formula, his MHR is 187 BPM, making the zone 112-131 BPM.
