Age 35, 50-85%
- Estimated max
- 185 bpm
- Moderate 50-70%
- 93-130 bpm
- Vigorous 70-85%
- 130-157 bpm
- Selected HR reserve
- 125-167 bpm
Target Heart Rate Calculator
Compare moderate and vigorous heart-rate zones by age, add resting pulse for heart-rate reserve, or convert a 10, 15, 30, or 60-second pulse count to BPM.
Estimate, not diagnosisFormula notesExample inputsTab-only history
Formula steps
- Estimate maximum heart rate as 220 minus age.
- Multiply maximum heart rate by the selected intensity range.
- Compare the American Heart Association moderate 50-70% and vigorous 70-85% reference ranges.
- If resting heart rate is entered, also show the selected heart-rate-reserve estimate.
- Use breathing, comfort, heat, medication, and medical limits before chasing a number.
Examples
Recent answers
Recent heart-rate checks will appear here.
Target zones are general estimates, and a manual pulse count can be uneven. Ask a clinician if medication, pregnancy, symptoms, or heart conditions affect your pulse.
Inputs and recent answers stay in this browser tab and are not sent to a server.
How to use the Target Heart Rate Calculator
- Choose Target zones for an age-based exercise range or Pulse to BPM for a timed manual count.
- For Target zones, enter age, choose the effort range, and add resting heart rate only if you want the selected heart-rate-reserve comparison.
- For Pulse to BPM, enter whole beats and select the exact 10, 15, 30, or 60-second window you counted.
- Compare the moderate and vigorous references, then use breathing, comfort, heat, symptoms, medication, and clinician advice before chasing a number.
What people use it for
Estimate moderate-intensity heart-rate range.
Estimate vigorous-intensity heart-rate range.
Compare simple max-heart-rate and heart-rate-reserve methods.
Convert a timed manual pulse count into beats per minute.
Quick examples
Age 35
50-85% zone93-157 bpm from an estimated 185 bpm max
Age 50
Moderate 50-70%85-119 bpm from an estimated 170 bpm max
Resting HR included
Age 35, resting 65, 50-85%125-167 bpm heart-rate reserve range
30-second pulse count
36 beats x 272 bpm
Need the guide or a nearby tool?
Need a slower walkthrough, a related calculator, or the full library? These links keep you close to the task you started.
- How to use the Target Heart Rate CalculatorSee slower examples, input meanings, formula notes, result limits, and mistakes to avoid.
- Health & FitnessBrowse related calculators and utilities in the same category.
- Calculator and utility guidesFind more guides that use real tool inputs and example numbers.
- All free toolsSearch every live tool, converter, calculator, AI helper, and browser utility.
Frequently asked questions
Plain-language answers about when to use the estimate, what the formula means, what it cannot decide for you, and how privacy works.
When should I use the Target Heart Rate Calculator?
Use it for simple educational checks, trend tracking, or planning tasks like these: Estimate moderate-intensity heart-rate range. Estimate vigorous-intensity heart-rate range. It can help you understand a number, but it cannot explain your whole health situation.
What do the main Target Heart Rate Calculator inputs mean?
For Target zones, enter age, choose the effort range, and add resting heart rate only if you want the heart-rate-reserve estimate. For Pulse to BPM, count whole beats for 10, 15, 30, or 60 seconds and select the same count time.
What is the Target Heart Rate Calculator doing with my inputs?
In plain language: Target zones use estimated maximum heart rate = 220 - age, then multiply by 50-70% for moderate effort or 70-85% for vigorous effort. Pulse to BPM uses beats counted x 60 / count seconds. Optional resting pulse adds a heart-rate-reserve comparison. Read the result together with the notes on the page, because health and fitness numbers often need personal context.
How should I read the Target Heart Rate Calculator result?
Read a target-zone answer as an estimated training range, not a perfect target you must hit. Read a pulse-to-BPM answer as a quick manual count that can vary with timing and rhythm. If exercise feels unsafe or a clinician gave you a different limit, use the safer guidance.
What does 50-70% mean for target heart rate?
It is the common moderate-intensity range. For a 35-year-old, the simple max estimate is 185 bpm, so 50-70% is about 93-130 bpm.
What does 70-85% mean for target heart rate?
It is the common vigorous-intensity range. For a 35-year-old, the simple estimate is about 130-157 bpm, but you should still listen to breathing, comfort, heat, and medical limits.
Why does resting heart rate change the result?
Resting heart rate lets the calculator show a heart-rate-reserve estimate. It starts from your resting pulse, then adds part of the gap between resting pulse and estimated maximum heart rate.
How do I calculate BPM from a pulse count?
Count whole pulse beats for a timed window, then multiply by 60 divided by the number of seconds. For example, 36 beats in 30 seconds uses a multiplier of 2, so the result is 72 bpm.
Is a 10-second or 30-second pulse count better?
A longer count usually reduces the effect of one missed or extra beat. The American Heart Association gives a 30-second count multiplied by 2 as a manual check. Repeat the count or seek medical advice if the rhythm seems irregular.
Is 220 minus age exact?
No. It is a quick age-based estimate. Real maximum heart rate can be higher or lower, and fitness level, sleep, heat, stress, and medication can all change how hard a number feels.
Should I chase the top of the zone?
No. Start near the lower end if you are new, coming back after a break, exercising in heat, or unsure how hard to go. A safer workout you can repeat is better than forcing a number.
When should I stop using the number and slow down?
Slow down or stop if you feel chest pain, dizziness, faintness, unusual shortness of breath, or a heart rate that feels wrong for you. Use medical advice before training through warning signs.
Can I use this as medical advice?
These are quick exercise and pulse estimates, not medical advice or an irregular-rhythm diagnosis. Ask a clinician what limit to use if you have a heart condition, take medication that affects pulse, are pregnant, or feel chest pain, dizziness, faintness, or unusual shortness of breath. Use the calculator as a learning tool, then ask a qualified professional about decisions that affect care, pregnancy, medication, nutrition, or safety.
What should I double-check before trusting the result?
For a zone estimate, check age, selected intensity, and whether resting heart rate was entered. For pulse to BPM, count whole beats and choose the exact time you used. Repeat a manual count when timing or rhythm was unclear.
Does the site save my health inputs?
No. The calculator runs in your browser tab. Recent answers stay only on the page while you use it, and they are not sent to a server.