Written by Muneeb Rana · Last updated 26 October 2026
Quick answer: Average speed meaning: average speed is total distance divided by total time, so stops at lights drag it down; max speed is the single highest reading during the trip. In Speedometer PRO's Current Trip card you see both. Max can be inflated by a GPS spike, so treat a surprising maximum with caution.
TL;DR
- Average = distance ÷ time.
- Stops lower the average.
- Max = highest single reading.
- GPS spikes can inflate max.
- Moving average excludes stops.
Average speed meaning and max speed definitions
Average speed over a trip is total distance divided by elapsed time. Max speed is the peak instantaneous value recorded. Some apps also show moving average, which excludes stationary time.
Worked example
| Trip | Distance | Time | Average |
|---|---|---|---|
| Highway, no stops | 60 mi | 60 min | 60 mph |
| City with stops | 10 mi | 30 min | 20 mph |
| Mixed | 40 mi | 50 min | 48 mph |
Check with the average speed calculator.
Why max speed can mislead
A single bad fix from signal reflection can register a brief impossible speed. Good apps filter outliers. If your max looks odd, compare it with what you remember and road conditions.
Average-speed cameras
Some roads enforce limits by timing vehicles between cameras, which effectively checks average speed over the section. A brief max above the limit is still speeding, however.
Using the numbers
Average speed helps plan journeys (travel time calculator); max speed is a self-check for riders and drivers. Review both in trip history.
Moving average vs overall average
Some apps compute average speed only while moving, others across the whole elapsed time including stops. A 60-minute trip with 15 minutes at lights shows very different numbers. Know which one you're reading before comparing trips.
Using both numbers
Average speed tells you how long a journey takes. Max speed tells you about peaks. For planning, average is what matters; for safety reflection, max can be a prompt to ask whether a stretch was driven too fast.
Moving time vs elapsed time
Average speed depends heavily on what time you divide by. Elapsed time includes every stop: traffic lights, fuel, coffee. Moving time excludes periods when you are stationary. A 30-mile commute that takes 60 minutes elapsed has an average of 30 mph, but if 15 of those minutes were spent stopped, the moving average is 40 mph. Cycling and running apps usually report moving averages because that reflects effort, while trip planning should use elapsed averages because that reflects arrival time. When you compare two trips, make sure you compare the same kind of average, or the numbers will mislead you.
Safety
Max speed is not a score to beat on public roads.
Related: GPS speedometer guide · Average speed calculator · Trip meter: duration, distance, average and max speed · Trip tracker: your past trips in one list · GPS speedometer vs radar speed · How to measure top speed · Digital speedometer: big numbers at a glance
Get Speedometer PRO on Google Play · Download on the App Store · Set it up before you move; never handle your phone while driving.
Sources
- Trip computer (Wikipedia): en.wikipedia.org (accessed 26 October 2026)
- Average speed camera (Wikipedia): en.wikipedia.org (accessed 26 October 2026)
- Speed (Wikipedia): en.wikipedia.org (accessed 26 October 2026)
- GPS Accuracy (GPS.gov): gps.gov (accessed 26 October 2026)
FAQ
Why is my average speed so low?
Stops at lights, junctions and traffic count as time but add no distance, which lowers the average.
What is moving average speed?
Average speed calculated only over time spent moving, excluding stops.
Is max speed accurate?
Usually, but a single GPS glitch can inflate it. Treat surprising peaks with caution.
How do average speed cameras work?
They time a vehicle between two points and calculate average speed over that distance.
Where do I see these in the app?
On the Current Trip card and in trip history.