Calculate maximum heart rate and training zones from age.
Max Heart Rate Calculator
Max Heart Rate
MHR = 220 - Age
yr
Max HR
190bpm
Target Zone
133-162bpm
HR Zones
About this calculator
What is the Max Heart Rate Calculator?
Max Heart Rate Calculator calculate maximum heart rate and training zones from age. It is part of Home of Calculators's Sports & Fitness Calculators suite for calorie burn, pace, VO2 max, and athletic performance metrics. The calculator is designed for athletes, coaches, fitness enthusiasts, but anyone can use it. No signup, no ads, no tracking. Just accurate math, computed locally in your browser using a BigNumber-precision math engine.
Formula Reference
The Formula
MHR = 220 − Age
Maximum Heart Rate (MHR) is the highest number of beats your heart can pump per minute. The classic formula (220 − age) is simple but has a standard error of ±10 bpm. Training zones are percentages of MHR.
Variables
AgeYour age (years)Worked Example
Age = 30
Result: MHR = 190 bpm
How to use the Max Heart Rate Calculator
- 1
Calculate MHR
Subtract your age from 220 to get your estimated maximum heart rate.
- 2
Determine training zones
Zone 1: 50-60%, Zone 2: 60-70%, Zone 3: 70-80%, Zone 4: 80-90%, Zone 5: 90-100%.
- 3
Use during exercise
Monitor your heart rate to stay in the desired training zone.
Quick tips
- All calculations run locally in your browser; your data never leaves your device.
- For best results on mobile, rotate to landscape when entering many values.
- Bookmark this page to come back to your calculation anytime.
- Need a different calculator? Try our visual builder to create your own.
Why Home of Calculators
- 100% private (calculations run in your browser)
- 128-bit BigNumber precision (no rounding errors)
- Works on any device: phone, tablet, desktop
- Free forever (no signup, no ads, no upsells)
Frequently asked questions
Is the Max HR accurate?
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Yes. Home of Calculators uses a BigNumber-precision math engine (64-128 decimal digits) to ensure calculations are accurate. We run 96+ automated tests covering unit conversion, financial formulas, health formulas, and more. For critical decisions (financial, medical, legal), we still recommend consulting a qualified professional.
Is the Max Heart Rate Calculator free?
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Yes. Every calculator on Home of Calculators is 100% free, with no signup, no ads, and no hidden fees. The entire platform is free forever.
Do you store the values I enter?
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No. All calculations happen in your browser. We never see, store, or transmit your inputs to any server. Your data stays on your device.
Can I use the Max HR on my phone?
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Yes. Home of Calculators is fully responsive and works on any device (phone, tablet, laptop, or desktop). The interface adapts to your screen size.
Can I embed this calculator on my own website?
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Yes. Click the "Share" button to get an iframe embed code. The embedded calculator will look like any other Home of Calculators widget. You can also build a fully customized version using our visual builder.
Can I build my own custom calculator?
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Absolutely. Home of Calculators's visual builder lets you add fields, write formulas, choose a theme, and brand the result with your own logo, all without writing code.