Pace Calculator

Enter your data into the tool below to calculate the speed for several sports such as jogging, strolling, or cycling. It also lets you determine either the duration or the length covered when you supply a specific pace together with either time or distance.

Multipoint Pace Calculator

This tool can compute the speed for each segment of a run—or any other activity—when you have timestamps recorded at various checkpoints. Suppose you run from point A to B, then to C, noting the time at each location, and you later obtain the distances between those points using online maps or apps. The multipoint calculator will then reveal the velocity for each leg, helping you analyse training sessions; by repeating the same route you can compare segment times (or laps) and spot sections that need improvement.

Pace Converter

Finish Time Calculator

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.

Typical Races and World Record Paces

Training Through Pace and Heart Rate

Pace describes how quickly you move, whereas heart rate counts the beats per minute. The two metrics rise together—running faster usually means a higher pulse. Monitoring both during workouts can boost performance, prevent excessive strain, and provide a clear picture of fitness progress.

Measuring and Estimating Heart Rate and Heart Rate Zones:

You can track heartbeats with dedicated monitors or by feeling your pulse at the wrist, neck, or other sites and checking the time on a watch. The most common values are the resting heart rate and the maximum heart rate, which serve as bases for calculating target zones tailored to various training intensities.

For most adults, resting heart rates are reported between 60 and 100 bpm, though some experts argue the normal window is closer to 50–90 bpm. A lower resting rate usually reflects a well‑conditioned heart, but values under 50 bpm may hint at a medical issue, just as readings above 90 bpm can signal potential problems.

The gold standard for determining maximum heart rate is a cardiac stress test, where heart activity is recorded while the workload rises in stages. Since such exams last 10–20 minutes and can be cumbersome, practitioners often rely on age‑based predictions. Although several equations exist, the one most frequently quoted is:

MHR = 220 – age

Even though this age‑based equation is widely used to set training zones, it lacks a statistical confidence interval and many specialists consider it a rough estimate at best. Individual maximum heart rates can differ markedly, even among athletes of the same age and training level. Nonetheless, the formula remains a handy reference for prescribing heart‑rate ranges, and exercising at 60–70 % of your predicted MHR is generally regarded as optimal for fat oxidation. See the chart below for details.

Aerobic vs. Anaerobic Exercise:

When discussing endurance work, you’ll often hear the terms aerobic and anaerobic. They differ mainly in how long the activity lasts and how intensely the muscles contract, which dictates the energy pathway used. Anaerobic bouts (~80–90 % of MHR) are short and high‑intensity, while aerobic work (~70–80 % of MHR) is lower‑intensity but can be sustained for longer periods. For best aerobic benefits, aim for an effort of 55–85 % of MHR for 20–30 minutes.

Pure aerobic exercise supplies enough oxygen for muscles to generate all the required energy. In contrast, during anaerobic effort the circulatory system cannot deliver oxygen quickly enough, so muscles break down glucose without oxygen, producing lactate as a by‑product. The buildup of lactate creates the familiar burning sensation and, if not cleared, forces the activity to stop. While some lactate is also formed during aerobic work, it is rapidly recycled, leaving only trace amounts in the bloodstream.

Grasping the role of aerobic training is crucial when preparing for endurance events such as a marathon. Figuring out a sustainable speed that relies mainly on aerobic energy—often called the “aerobic threshold pace”—helps keep a proper mix of fat and carbohydrate fuel. This speed is relatively easy, can be held for several hours, and by raising the aerobic threshold pace runners can achieve a quicker, maintainable tempo, a key component of many marathon plans.

The anaerobic threshold pace is commonly described as the point where glycogen, rather than oxygen, supplies most of the body’s energy. While anaerobic work certainly improves overall fitness, it isn’t the best approach for marathon preparation because the pace cannot be kept up for long stretches. That doesn’t mean you should avoid anaerobic sessions entirely; performing intervals at or just above the anaerobic threshold—when lactate accumulates faster than it can be cleared—can still provide valuable adaptations.

As with heart‑rate zones, the most precise method for pinpointing aerobic and anaerobic thresholds involves laboratory testing. Nevertheless, several field techniques exist, many of which use a heart‑rate monitor. A 2005 study found that a 30‑minute time trial with continuous heart‑rate tracking yields the most reliable estimate of the anaerobic threshold (outside of blood analysis). In that trial the athlete runs as hard as possible and averages the heart rate from the final 20 minutes; this average approximates the anaerobic (or lactate) threshold heart rate. The test should be done solo; if performed in a group the effort must be extended to 60 minutes. An easy way to approximate the aerobic threshold heart rate is to subtract roughly 30 beats per minute from the anaerobic value.

Essentially, threshold training involves training to postpone the point at which lactate starts to build up in the bloodstream, which effectively postpones the point of fatigue, potentially allowing a person to run farther and faster.