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# Calculate Accurate Distance Traveled with GPS in Python [closed]

Ask QuestionAsked 2 days agoActive yesterdayViewed 22 times0Closed. This question is off-topic. It is not currently accepting answers.

This question does not appear to be specific to the Raspberry Pi within the scope defined in the help center.

Closed 12 hours ago by joanMilliwaysDougieDarth Vader.

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I am trying to update distance traveled between GPS coordinates. My error is that the GPS can move short distances while sitting still. I am currently simply adding the new coordinates to a list every second, calculating the distance between this second and last second, then appending the distances to a new list then add them all together.

The issue is that the small movements in distance keep accumulating. Does anyone know the proper way to do this?

```self.breadcrumbs = []

#Calc Linear Distance GPS
while 1:
report = gpsp.get_current_value() #Retrieves GPS Values
try:
self.lat = report.lat
self.lon = report.lon
self.latlon = (self.lat, self.lon) #Put lat lon into tuple
breadcrumb_distances = [] #Holds distances between latlon data points
current_location = b
miles = geodesic(current_location, last_location).miles
feet = miles * 5280 #convert to feet
print(cumulative_distance)
except Exception as e:
print(e)
sleep(1)
```

• 1this is not a RPi question – jsotola 2 days ago
• 2@jsotola You’re right. I should go over to Stack and ask this one. – Mike C. 2 days ago
• 1You’re shooting yourself in the foot. Why do you add distance when the velocity is zero/near zero? You could start here – Seamus 2 days ago
• 1@Seamus Thanks for the tip. I’ll check it out. – Mike C. 2 days ago
• 1Hope it helps… you will almost always get a better outcome in these Q&A forums if you do a bit of homework beforehand. – Seamus 2 days ago
• Well, no worries about small distances accumulating, because you can (1) do moving averages using Rpi Thonny python eg, (2) use Excel worksheet or Rpi LibOffice worksheet and graph to handle that, (3) Use a Rpi small database utility (of course much more powerful) to store, analyze, and reports. – tlfong01 53 secs ago   Edit