What is the fat-burning heart rate zone?

The fat-burning zone is typically 60–70% of your maximum heart rate. At this intensity, approximately 60% of calories burned come from fat. While higher intensities burn more total calories, the fat-burning zone burns the highest proportion of fat.

How do I calculate my fat-burning heart rate?

First, estimate your max heart rate: 220 minus your age. Then multiply by 0.60 and 0.70 to get the lower and upper bounds. For example, at age 30: max HR = 190, fat-burning zone = 114–133 bpm.

Is the fat-burning zone the best for weight loss?

Not necessarily. While the fat-burning zone uses more fat as fuel, higher-intensity exercise burns more total calories and can lead to greater overall fat loss. A mix of intensities is generally best for weight loss.

How accurate is the 220 minus age formula?

The 220 minus age formula is a rough estimate with a standard deviation of about 10–12 bpm. It works for most people but can be significantly off for some individuals. A clinical max HR test is more accurate.

Fat Burning Heart Rate Calculator

Your fat-burning heart rate zone is the exercise intensity where your body uses the highest percentage of fat for fuel. This calculator uses your age to determine your maximum heart rate and the optimal 60–70% zone for fat burning.

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Your Age

years

How It Works

Your maximum heart rate is estimated as 220 minus your age. The fat-burning zone is 60–70% of your maximum heart rate. At this moderate intensity, your body primarily burns fat for energy rather than carbohydrates.

Quick Reference

Age	Max HR (bpm)	Fat Burning Zone (bpm)
20	200	120–140
25	195	117–137
30	190	114–133
35	185	111–130
40	180	108–126
45	175	105–123
50	170	102–119
55	165	99–116
60	160	96–112
65	155	93–109
70	150	90–105

Frequently Asked Questions

What is the fat-burning heart rate zone?: The fat-burning zone is typically 60–70% of your maximum heart rate. At this intensity, approximately 60% of calories burned come from fat. While higher intensities burn more total calories, the fat-burning zone burns the highest proportion of fat.
How do I calculate my fat-burning heart rate?: First, estimate your max heart rate: 220 minus your age. Then multiply by 0.60 and 0.70 to get the lower and upper bounds. For example, at age 30: max HR = 190, fat-burning zone = 114–133 bpm.
Is the fat-burning zone the best for weight loss?: Not necessarily. While the fat-burning zone uses more fat as fuel, higher-intensity exercise burns more total calories and can lead to greater overall fat loss. A mix of intensities is generally best for weight loss.
How accurate is the 220 minus age formula?: The 220 minus age formula is a rough estimate with a standard deviation of about 10–12 bpm. It works for most people but can be significantly off for some individuals. A clinical max HR test is more accurate.

How This Is Calculated

Max Heart Rate = 220 − age Fat Burning Low = MHR × 0.60 Fat Burning High = MHR × 0.70

MHR: = maximum heart rate in beats per minute
0.60: = lower bound of the fat burning zone (60%)
0.70: = upper bound of the fat burning zone (70%)

Based on the standard 220-age formula. At this intensity, approximately 50–60% of calories burned come from fat.

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Disclaimer

This calculator provides estimates for informational purposes only and should not be considered medical advice. Individual results may vary based on factors not captured by these formulas. Consult a healthcare professional before making changes to your diet or exercise routine, especially if you have any existing health conditions.