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Max Heart Rate Calculator

Choose the method for measuring maximum heart rate and enter your age in the Max Heart Rate Calculator to determine your maximum heart rate.

Formula:

HR_age = 205.8 - (0.685 * max)

HR_age = 220 - max

HR_age = 211 - (0.64 * max)

HR_age = 192 - (0.007 * max²)

HR_age = 208 - (0.07 * max)

Max Heart Rate:

years

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Max Heart Rate Calculator

The max heart rate (MHR) calculator estimates the maximum number of heartbeats per minute during exercise or stress. It helps determine a safe upper limit for heart activity to avoid overexertion.

What Is Maximum Heart Rate?

Maximum heart rate is the highest number of heartbeats a person can achieve in one minute. It varies with age, fitness level, and daily activity. Other factors affecting heart rate include:

Weather
Posture (standing up)
Emotions
Stress and anxiety
Body size
Medications
Caffeine and nicotine

The max heart rate calculator considers these factors to estimate your heart's capacity safely.

How to Calculate Maximum Heart Rate?

There are multiple formulas used to calculate MHR. Common ones include:

Inbar Formula: HRmax = 205.8 − (0.685 × age)
Haskell & Fox Formula: HRmax = 220 − age (most commonly used)
Oakland Nonlinear Formula: HRmax = 192 − (0.007 × age²)
Tanaka, Monahan, & Seals Formula: HRmax = 208 − (0.7 × age)

Practical Example:

Calculate the max heart rate using Haskell & Fox for a 46-year-old:

Age = 46
HRmax = 220 − 46 = 174 bpm

How the Max Heart Rate Calculator Works

Input:

Select the formula/method
Enter your age
Click "Calculate"

Output:

Maximum heart rate (HRmax)

The calculator provides a fast, convenient way to identify your heart's peak capacity safely.

Max Heart Rate Table

The following table shows typical target and maximum heart rate zones by age:

Age	Target HR Zone (50-85%)	Average Maximum Heart Rate (100%)
20 years	100-170 bpm	200 bpm
30 years	95-162 bpm	190 bpm
35 years	93-153 bpm	185 bpm
40 years	90-170 bpm	180 bpm
45 years	88-149 bpm	175 bpm
50 years	85-145 bpm	170 bpm
55 years	83-140 bpm	165 bpm
60 years	80-136 bpm	160 bpm
65 years	78-132 bpm	155 bpm
70 years	75-128 bpm	150 bpm

The online MHR calculator provides an interactive way to quickly determine your maximum safe heart rate for exercise.

Target Heart Rate Chart

You can determine your target heart rate for exercise using the chart below. It shows heart rate zones based on age and exercise intensity.

Heart Rate Zone	Low Intensity (50-60%)	Moderate Intensity (60-70%)	Aerobic Zone (70-80%)	Vigorous Intensity (75-85%)	Maximum (100%)
Age 20	97-116 bpm	116-135 bpm	135-155 bpm	145-164 bpm	194 bpm
Age 25	95-114 bpm	114-134 bpm	133-152 bpm	143-162 bpm	190 bpm
Age 30	93-112 bpm	112-131 bpm	131-149 bpm	140-159 bpm	187 bpm
Age 35	92-110 bpm	110-128 bpm	128-147 bpm	138-156 bpm	183 bpm
Age 40	90-108 bpm	108-126 bpm	126-144 bpm	135-153 bpm	180 bpm
Age 45	88-106 bpm	106-124 bpm	124-141 bpm	133-150 bpm	177 bpm
Age 50	87-104 bpm	104-121 bpm	121-139 bpm	130-147 bpm	173 bpm
Age 55	85-102 bpm	102-119 bpm	119-136 bpm	128-145 bpm	170 bpm
Age 60	83-100 bpm	100-117 bpm	117-133 bpm	125-142 bpm	167 bpm
Age 65	82-98 bpm	98-114 bpm	114-131 bpm	123-139 bpm	163 bpm
Age 70	80-96 bpm	96-112 bpm	112-128 bpm	120-136 bpm	160 bpm
Age 75	78-94 bpm	94-110 bpm	110-125 bpm	117-133 bpm	157 bpm
Age 80	77-92 bpm	92-107 bpm	107-123 bpm	115-130 bpm	153 bpm

You can also use an online Target Max Heart Rate Calculator to quickly determine your ideal zones based on age.

FAQs

What Is a Normal Heart Rate?

A normal resting heart rate is typically between 60 and 100 beats per minute. Your actual rate may vary depending on age, fitness, and activity level. Tools like a maximum heart rate calculator can provide a personalized estimate.

Is Female Heart Rate Different From Men?

Yes, women generally have slightly higher resting heart rates (around 78–82 bpm) than men (70–72 bpm). A female-specific max heart rate calculator can help assess heart rate targets for women.

Why Do Women Have Higher Heart Rates?

Women tend to have higher heart rates due to smaller heart sizes compared to men. Specialized calculators can provide accurate target heart rates for women.

References:

Verywell Fit: Max Heart Rate
Lifespan Fitness: Heart Rate Calculator

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