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Heart Rate Calculator to Calculate MHR, THR, and Training Zones

Calculator Preferences
Heart Rate Calculator Sign
Heart Rate Calculator

This calculator is actually five heart rate calculators all rolled into one. Calculate your maximum (MHR), target (THR), and reserve (RHR) heart rates, plus calculate your resting heart rate health category and create a personal, printable heart rate training zone chart. The Notes tab includes:

  • How the calculator came to be.
  • Heart rate formulas.
  • How to check your heart rate, and a shortcut method.
Learn More

Selected Data Record:

A Data Record is a set of calculator entries that are stored in your web browser's Local Storage. If a Data Record is currently selected in the "Data" tab, this line will list the name you gave to that data record. If no data record is selected, or you have no entries stored for this calculator, the line will display "None".

DataData recordData recordSelected data record: None
Age:Your age:Your current age:Your current age:

Your current age:

Enter your current age.

Gender:Gender:Gender:Gender:

Gender:

Select male or female.

Avg RHR:Average RHR:Average resting heart rate (RHR):Average resting heart rate (RHR):

Average resting heart rate (RHR # beats per minute):

Before you get out of bed in the morning, and prior to any physical exertion, count the number of times your heart beats during a 1-minute time period. Repeat for several mornings and enter the average here. Note that you can feel your heart beat by placing your index and middle fingers on your neck, just to either side of your adams apple.

Intensity:Intensity level:Intensity level:Intensity level:

Intensity level:

Select your desired level of intensity. The percentages represent a target percentage of your maximum heart rate. Most resources I studied recommended target rates between 50% and 85% of your maximum -- hence the 65% default setting.

Include chart:Include chart:Include Training Zone Chart:Include Heart Rate Training Zone Chart:

Include Heart Rate Training Zone Chart:

Move the slider to "Yes" position if you would like the results to include a custom training zone heart rate chart with the results. Note that the chart will be created using the Zoladz method of creating exercise zones.

Max rate:Maximum rate:Maximum heart rate (MHR):Maximum heart rate (MHR):

Maximum heart rate (MHR):

Based on your age and gender, and the MHR formulas listed under the Notes tab, this is your estimated maximum heart rate (MHR) in beats per minute (BPM). Note that another of many methods for calculating MHR is simply MHR = 220 - age. With so many MHR formulas available be sure to consult with a qualified medical physician to assist you with calculating your maximum heart rate.

Rate reserve:Rate reserve:Heart rate reserve (HRR):Heart rate reserve (HRR):

Heart rate reserve (HRR):

This is the difference between your calculated maximum heart rate and your resting heart rate.

Target (c):Target (classic):Target heart rate, classic method:Target heart rate, classic method:

Target heart rate, classic method:

Based on your entries, this is your target heart rate without factoring in your specific resting heart rate. The formula used by the heart rate calculator is THR = ((MHR - 70) * % intensity) + 70.

Target (K):Target (Karvonen):Target heart rate, Karvonen method:Target heart rate, Karvonen method:

Target heart rate, Karvonen method:

Based on your entries, this is your target heart rate after factoring in your resting heart rate. The Karvonen formula this result is based on is THR = ((MHR - RHR) * % intensity) + RHR;

Resting rtg:Resting rating:Resting heart rate rating:Resting heart rate rating:

Resting heart rate rating:

Based on your age, resting heart rate, and the charts located at http://en.wikipedia.org/wiki/Heart_rate, this is the category your average resting heart rate falls within. Note that if your age and/or resting heart rate fall outside of the chart, this field will display N/A.

If you would like to save the current entries to the secure database, tap or click on the Data tab, select "New Data Record", give the data record a name, then tap or click the Save button. To save changes to previously saved entries, simply tap the Save button. Please select and "Clear" any data records you no longer need.

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Tip

About

About the Heart Rate Calculator

This calculator will instantly calculate your maximum, target, and training zone heart rates.

Plus, the calculator will also report which health category your age and resting heart rate classifies you as, and calculates your target heart rate using both the classic and the Karvonen formulas.

And finally, the calculator also includes a feature that will allow you to create and print your own personal heart rate training zone chart.

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Instructions

How to use the Heart Rate Calculator

Step #1:

Enter your current age.

Step #2:

Choose your gender.

Step #3:

Enter your average resting heart rate.

Step #4:

Choose your exercise intensity level.

Step #5:

Indicate whether or not you want a printable training zone chart included in the results.

Step #6:

Click the "Calculate Heart Rate" button and scroll down to view the results.

Saving Entries:

If your web browser supports Local Storage, you can save your entries to your web browser so won't have to start over on your next visit. Please note that your saved entries can only be retrieved from the same device and web browser you were using when you stored them. If you would like to access your saved entries from any device I invite you to subscribe to the Ad-Free Member Version.

To save your entries to your web browser, click or tap the Data tab in the Help and Tools section (mobile: top right of the main screen), select "New Data Record" from the drop-down menu, enter a name for the data record, and then tap or click the Save button.

To load previously saved entries, click or tap the Data tab and select the saved data record from the drop-down menu. You can then save any changes to your entries by simply clicking the Save button while the data record is selected.

To clear a named set of saved entries, click or tap the Data tab, select the saved data record from the drop-down menu, and then tap or click the Clear button.

Numbers and Decimals:

Only numeric characters (0-9 and decimal points) may be entered in numeric fields. Non-numeric characters (dollar signs, percent signs, commas, etc.) may cause calculation errors. If the field includes a grid icon, tapping the icon will open a popup keypad which will include only the characters allowed in the field. If your device keypad does not include a decimal point, use this popup keypad to enter decimal numbers where applicable.

Popup Tool Tips:

Tap the info (i) icons for a further explanation of each entry field (you can click [X] or outside of the pop-up tool tips to close them). A summary of these explanations, along with any additional term explanations, can also be found under the Terms tab.

Disclaimer:

Since I can't test for every possible combination of numbers, please be sure to double-check the results of this calculator yourself before considering them to be valid. If you do discover an issue with the calculated results, please report the issue using the feedback form located below the calculator.

Scrolling & Shrinking:

In order to scroll the calculator vertically you will need to swipe just outside of the calculator's dark-blue border, or use the window's far right-hand scroll bar, whichever is applicable to your device.

If the top section of the calculator becomes to tall for your viewport, tapping in the "Enter a problem..." field should reset the top section to its original height.

Disclaimer:

The Algebra Calculator is the only calculator on the site that I did not create myself. And since I did not create it, I don't have access to the code for fixing any issues you may be experiencing. So if you are having issues with the calculator, please visit the support page at Mathway.com for assistance.

Glossary

Fields, Terms, and Definitions.

Reset button:

Clicking the "Reset" button will restore the calculator to its default settings.

Pocket Calculator

Calculate any amounts needed to enter into calculator.

 

Data Management

Save and retrieve entries and notes (requires HTML5 compliant web browser).

Calculator Data

Calculator Data:

If you are using the latest version of your web browser software, this feature will allow you to save your calculator entries to your web browser's local storage in between visits. This means the calculator entries can only be recalled with the same device and web browser you were using when you saved them. If you'd like to save data between devices you will need to subscribe to the Ad-Free Member Version.

Save: To save a new set of calculator entries, select "New Data Record" from the dropdown list, enter a nickname for the data record, then click the "Save" button.

Load: To load a previously saved set of calculator entries, simply select the name of the data record from the dropdown list.

Save Changes: To save changes to a set of previously saved calculator entries, be sure the name of the data record is selected, and then click the "Save" button.

Clear: To clear a saved set of entries, be sure the name of the data record is selected, and then click the "Clear" button.

Backup Data
My Notes:
Subscribe to the Cloud level of the Ad-Free Member Version to save your entries and notes to a secure online database, allowing you to access your saved entries from any device or web browser.

Sorry! The Save functions are bonus features reserved for those who allow ads to display on the page.

If you would like to use the Save features, please disable ad blocking for this website and refresh the page. Or you can choose to subscribe to the Ad-Free Member Version of the site.

Help and Tools

Help and Tools:

This section, which you can Unstick or Hide in the Calculator Preferences (just above the top of the calculator), contains the following tabs (content too long to fit within bordered frame can be scrolled up and down):

About: Click this tab for an introduction to the calculator.

Instructions: Click this tab for step-by-step instructions for using the calculator.

Terms: Click this tab for a list of the descriptions that are located within each popup help button (info icons).

PCalc: Click this tab for a handy "pocket" calculator you can use when you need to calculate an entry needed for the calculator.

Data: Click this tab to save a set of entries or a note in between visits. Entries and notes will be stored to your web browser's local storage (if supported by your browser of choice), meaning they can only be recalled with the same device and web browser you were using when you saved them. If you'd like to save entries and notes between devices you can do so by subscribing to the Ad-Free Member Version.

 

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