3.75 km how many miles

For example, if a person runs from point A to point B, then to point C, records the time at each point, and subsequently determines the distance between those points using many available websites, applications, or maps , the multipoint calculator can determine how fast the person traveled between each pair of points, allowing use for training purposes; a person can run the same route or distance repeatedly and track pace over that given route, enabling comparison of times between each segment or lap to identify areas for potential improvement.

The following calculator can be used to estimate a person's finish time based on the time and distance covered in a race at the point the calculator is used. Pace is a rate of activity or movement, while heart rate is measured as the number of times that a person's heart contracts over a minute.

Pace and heart rate have a positive correlation; higher pace corresponds to higher heart rate. The use of both in training can help a person improve performance, avoid over-training, as well as track progress and fitness over time. Heart rate can be measured in different ways, from using devices such as heart rate monitors, to simply looking at a watch while measuring pulse at some peripheral point such as the wrist or neck.

Some of the more notable measurements of heart rate include resting heart rate and maximum heart rate, which are often used to estimate specific target heart rate zones to determine different levels of exercise. Typical adult resting heart rates RHR are commonly cited to range from beats per minute bpm , though there is some argument that normal RHRs actually fall within the range of bpm.

Generally, a lower RHR indicates more efficient heart function, though RHRs that are lower than 50 bpm can be a sign of an underlying heart condition or disease. The same is true of RHRs above 90 bpm. Maximum heart rate MHR is most accurately measured using a cardiac stress test, which involves measuring a person's heart function including heart rate at periodically increasing levels of exercise.

These tests typically range from ten to twenty minutes in duration, which can be inconvenient. As such, there are many estimates for MHR based on age, which is strongly correlated with heart rate, though there is little consensus regarding which formula should be used.

The most commonly cited formula for calculating MHR is:. Although it is the most commonly cited formula, and is often used to determine heart rate training zones, it does not have a reference to any standard deviation, and is not considered a good predictor of MHR by reputable health and fitness professionals.

Furthermore, MHRs vary significantly between individuals, even those with highly similar training and age within the same sport. Nevertheless, MHR determined using the above formula is often used to prescribe exercise training heart rate ranges, and can be beneficial as a reference.

It's going to take another few hours, even without rest stops. This chart begins at a distance just slightly longer than a half marathon and provides data for up to a full marathon. That's how far it is and how long it may take you. Are you ready to start training?

Looking to start walking off the weight? Our free guide offers tips, workouts, and a printable schedule to help you get on the right track. Sports Medicine. How fast is fast enough? Br J Sports Med.

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I Accept Show Purposes. Was this page helpful? Thanks for your feedback! Sign Up. What are your concerns? To calculate a kilometer value to the corresponding value in miles, just multiply the quantity in kilometers by 0. To calculate a mile value to the corresponding value in kilometers, just multiply the quantity in miles by 1.

How many miles in 3. Using this converter you can get answers to questions like: How many miles are in 3. How to convert kilometers to miles? What is the km to in conversion factor?