rideWattly

Speedometer

Light Mode
Current: 0.0 km/h
Sample avg: 0.0 km/h
Stable avg: 0.0 km/h
Max: 0.0 km/h
Duration: 0:00
Distance: 0.000 km
GPS accuracy: —

Ready. Click Start (requires HTTPS for GPS).

Debug 

  



















  
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    How to Use This Speedometer
    
  
    
    Use this GPS speedometer to track current speed, session maximum speed, average speed,
    duration, and distance while riding, running, or scootering.
  
    

  
    Short Guide
    
  
      
    
    1. Select your activity mode: Bike, Scooter, or Running.
      2. 
    
    2. Choose units (km/h or mph) and optional Demo mode.
      3. 
    
    3. Click Start and allow location access for live tracking.
      4. 
    
    4. Ride normally and monitor current speed, max speed, and distance.
      5. 
    
    5. Click Stop to finish the ride, save history, and share ride stats.
      6. 
  
    

  
    FAQ
    
  
    
    1) Why is the speedometer asking for location permission?
    
    
      The tool uses your device GPS through the browser Geolocation API to calculate and display
      live speed and distance.
    
    
  
    
  
    
    2) Does this tool work without HTTPS?
    
    
      On most devices, Geolocation requires HTTPS. It can also work on localhost during local testing.
    
    
  
    
  
    
    3) What is the difference between Sample Avg and Stable Avg?
    
    
      Sample Avg is the average of captured speed samples. Stable Avg is distance divided by elapsed
      time, which better reflects whole-session movement.
    
    
  
    
  
    
    4) Can I switch between km/h and mph?
    
    
      Yes. Enable the units toggle to show speed values in mph, or keep it off for km/h.
    
    
  
    
  
    
    5) How can I share my ride results?
    
    
      Use the Share Ride button. Supported browsers open the native share dialog; otherwise the ride
      summary is copied to your clipboard.
    
    
  
    

    


    
  
    
    This tool is part of the educational resources published on RideWattly. 
    Results should be used as a reference only and not as professional engineering advice.