Question: how many miles should i run a week to keep fit?
Answer: Beginning runners should start with two to four runs per week at about 20 to 30 minutes (or roughly 2 to 4 miles) per run. You may have heard of the 10 Percent Rule, but a better way to increase your mileage is to run more every second week. This will help your body adapt to your new hobby so you don't get hurt.