Target Heart Rate Calculator

Calculate your target heart rate zones for optimal exercise intensity

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Target Heart Rate Calculator

Calculate your target heart rate zones for different exercise intensities. Target heart rate helps you exercise safely and effectively by maintaining an optimal heart rate range during physical activity.

📊 Personal Information

Ages: 13 - 100

bpm

Optional - Leave blank to use simplified calculation

🎯 Target Heart Rate Zones

Maximum Heart Rate
190
bpm
Target Heart Rate during Aerobic Exercise
130 to 172 bpm
(50 - 85% of heart rate reserve)
Very Light (50-60%)
130 - 142 bpm
Light (60-70%)
142 - 154 bpm
Moderate (70-80%)
154 - 166 bpm
Hard (80-90%)
166 - 178 bpm
Maximum (90-100%)
178 - 190 bpm
Resting Heart Rate 70 bpm
Heart Rate Reserve 120 bpm
Target Zone (50-85%) 130 - 172 bpm

Zone Benefits

Very Light
Warm-up, cool-down, recovery
Light
Fat burning, base fitness
Moderate
Aerobic base, endurance
Hard
Lactate threshold, speed
Maximum
VO₂ max, power, short bursts

📚 Understanding Target Heart Rate

What is Target Heart Rate?

Target heart rate is the ideal range of heart beats per minute during exercise that allows you to get the most benefit from your workout while staying safe.

Heart Rate Reserve

Heart rate reserve is the difference between your maximum heart rate and resting heart rate. It's used in the Karvonen method for more accurate target heart rate calculation.

Training Zones

Different heart rate zones provide different training benefits, from fat burning in lower zones to VO₂ max improvement in higher zones.

Calculation Methods

There are several methods to calculate target heart rate:

Karvonen Method (Recommended)

Target HR = RHR + (HRmax - RHR) × %Intensity

Uses heart rate reserve for more personalized results

Simple Percentage Method

Target HR = HRmax × %Intensity

Simple calculation based only on maximum heart rate