How many miles should a 51 year old female walk in a week?
You should walk a minimum of 30 minutes a day. The time and frequency are more important than the distance.
How many miles you should walk per week to lose weight depends on how much weight you want to lose and in how much time you want to lose it. Whether or not you are making any other efforts to lose weight is also important, such as adapting a healthy diet and lifestyle. You should aim to walk between 5 and 10 miles a week to start out with, or more if you are able.