Bike Pace Calculator

Created by Wei Bin Loo
Reviewed by Anna Szczepanek, PhD and Adena Benn
Last updated: May 31, 2023

We have prepared this cool bike pace calculator to help you measure how fast you can bike. This incredible bike pace calculator can also help you to understand your average speed when completing a cycling race.

After reading this article, you will understand what a good bike pace is, what the average cycling speed is, and how to calculate it. This Ironman bike pace calculator will also demonstrate some examples to help you understand the concept.

What is bike pace?

Bike pace, also known as cycling pace, is the time you need to complete a certain cycling distance. This information also tells you how fast you can cycle.

For instance, if you need 1 hour to complete a 20 km race, your bike pace will be 3 minutes per km. This metric is useful for you to prepare for a race. It is important for you to understand and maintain a constant pace during a race, especially a long-distance one like the Ironman triathlon.

How to calculate bike pace? Cycling speed calculation

To understand the running pace calculation, let's take David, who is trying to complete a marathon, as an example:

  • Race type: Ironman triathlon;
  • Distance: 180 km; and
  • Time spent: 10 hours.

You can calculate bike pace in three steps:

  1. Determine the distance of the race:

    The initial stage of this computation involves establishing the overall distance to be cycled. For instance, in this scenario, David is set to complete an Ironman triathlon with a cycling stretch covering 180 km.

  2. Calculate the time spent to complete the race:

    The next step is to compute the amount of time you spent on completing the race. You can use our time duration calculator and race time improvement calculator to help with that.

  3. Calculate the bike pace:

    The last step is to calculate the bike pace using the following formula:

    bike pace = time spent / distance run

    Hence, David's bike pace is 3 minutes and 20 seconds per kilometer.

    If you have your speed already calculated but need it in another unit of measurement, you can use our speed conversion calculator. This tool enables you to convert between 5 different units of speed.

What is a good bike pace? What is an average cycling speed?

The average bike pace can vary widely depending on the cyclist's fitness level, age, and other factors. However, a general guideline for the average bike pace is between 5-6 min/km for a recreational cyclist on a flat course with no wind. For more experienced cyclists, a good bike pace can be between 3-4 min/km or even faster.

It's worth noting that bike pace can vary widely depending on the terrain and wind conditions. For example, cycling uphill or into a strong headwind can significantly reduce your bike pace, while cycling downhill or with a tailwind can increase it. It's also important to remember that calculating cycling speed is not the only measure of cycling performance. Factors such as endurance, power output, and cadence also play a role.

Ironman bike pace calculation

In the Ironman triathlon, athletes must complete a 180 km bike leg as part of a grueling 3.8 km swim, 180 km bike ride, and 42.2 km marathon run. For most people, completing an Ironman triathlon is a significant accomplishment, and achieving a good bike pace can be a critical factor in finishing the race.

The bike pace for an Ironman triathlon can vary widely depending on the athlete's fitness level, experience, the course's terrain, and wind conditions. However, a good guideline for a strong bike pace in an Ironman triathlon is 3-4 min/km or faster. Achieving this pace requires a combination of factors, including proper training, nutrition, hydration, and pacing.

One of the keys to achieving a good bike pace in an Ironman triathlon is pacing yourself correctly. It's essential to start the bike leg at a comfortable pace that you can maintain for the entire 180 km, as pushing too hard too soon can lead to burnout later in the race. It's also essential to properly manage your nutrition and hydration to avoid bonking or dehydration, which can significantly affect your bike pace.


What is the bike pace for a cycling speed of 10 km/h?

For a cycling speed of 10 km/h, a bike pace of 6 min/km is required. This means you will use 6 minutes to complete 1 km by cycle.

What factors affect my average cycling speed and bike pace?

Several factors can affect your bike pace. These factors are fitness level, bike setup, terrain, wind conditions, hydration, nutrition, and pacing strategy. It is essential to consider all these factors when preparing for a race.

How do I calculate my bike pace?

You can calculate your bike pace in three steps:

  1. Compute the distance of your bike ride.

  2. Determine the time spent to complete the ride.

  3. Apply the bike pace formula:

    bike pace = time spent / distance run

How can I maintain a consistent bike pace during a long ride?

To maintain a consistent bike pace during a long ride, you can use a pacing strategy that involves starting at a comfortable pace. Also, maintain a steady effort and conserve your energy for later in the ride. Additionally, proper nutrition and hydration can help you avoid bonking or dehydration, which can significantly affect your bike pace.

Wei Bin Loo
Bike pace
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