20-25 kilometers (12.5-15 miles) are a very typical distance for Camino pilgrims. On my Caminos, I averaged ~22 kilometers per day. BUT, if you've absorbed the advice here regarding how to prepare for the Camino, your mileage will vary. Expect to start slower and gain fitness and confidence as you go. And if you are experiencing issues like blisters or muscle pain, you need to pay attention to that.