how long does it take to travel from euston train station to walthamstow central?

7 stops
about 20 mins, maybe a bit more
ignore the comment underneath, i live in Walthamstow

Depends on the time of day, but between 35 & 45 minutes

http://www.thetrainline.com

For a precise time, this website is perfect.
http://www.nationalrail.co.uk/#
Put in your start and end destination (So, Euston and Walthamstow) and then specify the date and time you want to travel. You'll get several different times of train on the next page to choose from.
Bear in mind, journeys can sometimes take longer (or be subject to changes/bus sections) on the weekends, due to engineering works.

Hi Jennifer,
It takes 18- 20 Minutes on the Victoria Line.
There will be engineering works this weekend so you'll have take a bus to Manor House, Piccadilly Line to Kings Cross then a Northern Line to Euston. Overall this could take 45 Mins

only 7 stops, i dont think it will be that long.

[advance]

Hi Jennifer,
there only 7 stops, about 20 minutes, maybe a bit more i dont think it will be that long.
best of luck