Speed Calculator – Distance, Time, Pace And Travel Time
This Speed Calculator gives you several ways to understand how fast you are moving. You can compute speed from distance and time, convert between MPH, KMH and meters per second, combine several segments to find average speed, work out running pace, and estimate how long a trip will take at a given speed.
Speed From Distance And Time
The basic tab uses the core relationship between distance, time and speed. If you travel a distance d in a time t, your average speed v is:
v = d ÷ t
For example, if you cover 120 kilometers in 2 hours, your average speed is 60 km/h. The calculator accepts kilometers, miles or meters and time in hours, minutes and seconds, then shows the result in several units so you can compare car journeys, runs, rides and more on a common basis.
MPH, KMH And m/s Conversions
Different regions and activities use different speed units. Cars often use miles per hour or kilometers per hour, while physics and engineering work may prefer meters per second. The converter tab applies standard conversion factors, such as:
1 MPH ≈ 1.609344 KMH
1 KMH ≈ 0.27778 m/s
Enter a single value in any supported unit and the tool instantly returns equivalent values in the other units. This is helpful when you want to compare car speed with treadmill speed, running pace with cycling speed, or measurement data from different sources.
Average Speed Over Multiple Segments
Real trips and workouts are often split into several parts with different speeds. The average speed tab lets you enter up to three segments, each with its own distance and time, and then combines them into a single overall figure. Mathematically, average speed is:
Average speed = Total distance ÷ Total time
This is not the same as simply averaging speeds from each segment. The total distance and total time are what matters. The calculator handles that automatically and shows the result in both km/h and mph, so you can see how your full route or training session compares to your goals.
Running Pace In Minutes Per Kilometer Or Mile
Runners usually think in terms of pace rather than raw speed. Pace is the time it takes to cover one unit of distance, such as minutes per kilometer or minutes per mile. The pace tab converts your race or workout time and distance into both speed and pace formats. The underlying relationship is:
Pace = Time ÷ Distance
If you complete 10 kilometers in 50 minutes, your pace is 5:00 per kilometer and about 8:03 per mile. The calculator presents the pace in both units so you can follow training plans, compare courses and understand how small changes in time affect pace.
Travel Time From Distance And Speed
The travel tab is designed for trip planning. Enter the total distance in kilometers or miles and your expected average speed, and it will estimate how long the journey will take. The core relationship is rearranged to:
Time = Distance ÷ Speed
This estimate assumes a steady average speed and does not include stops, traffic, or breaks, but it provides a useful starting point for both road trips and long rides. You can quickly test how small changes in speed affect arrival time.
Related Calculators For Distance, Time And Pace
If you need to go deeper, you can combine this Speed Calculator with other tools on MyTimeCalculator. For example, you might use a dedicated travel or distance tool alongside this page to explore route variations, or pair it with a workout or fitness focused tool when planning intervals and training sessions.
When you understand how distance, time, pace and speed all fit together, it becomes easier to plan efficient trips, realistic workouts and useful comparisons between different activities.
Speed Calculator Formula Summary
- Speed = Distance ÷ Time
- Time = Distance ÷ Speed
- Distance = Speed × Time
- Pace = Time ÷ Distance
Speed Calculator
Frequently Asked Questions
Helpful explanations about speed, average speed, pace, and why travel-time estimates may differ in real conditions.
Enter the distance traveled and the time it took. The calculator divides distance by time to return your speed in the main unit you select, along with additional units such as km/h, mph and m/s for convenience. This makes it easy to compare results across different measurement systems.
Instantaneous speed describes how fast you are moving at a specific moment. Average speed is the total distance divided by total time for the whole trip or activity. The average speed tab on this page uses all segments you enter, not just a simple average of each segment’s speed.
Speed expresses distance per unit time, such as km/h or mph. Pace is the inverse—time per unit distance, such as minutes per kilometer or mile. Many runners find pace more intuitive for training and race planning, which is why the pace tab shows both speed and pace side by side.
Yes. The formulas for speed, distance and time are universal. Whether you're planning a car trip, checking cycling speed or analyzing running pace, you can choose the distance and time units that best match your activity and the calculator will adjust automatically.
The travel time tab assumes a constant average speed and does not factor in real-world conditions such as traffic, road works, hills, weather, rest stops or traffic lights. To improve accuracy, choose a realistic average speed rather than the maximum speed your car or bike can achieve.