In Training for Jimmy

I am trying to figure out how many miles I have been actually walking each day. I am now walking from my home and added a hike around the regional lake to the rest of my hike. I thought I was up to about 6+ miles on this hike. Purchased a pedometer and could not get it to register beyond 2.5 miles...so that is definitely not right. Does not match up with my driving calculations on some of the walk where I could drive in the car. So will try one more time tomorrow to figure out with pedometer. I discovered google has a pedometer that can help figure out miles, but still do not think it is accurate. I would just like to know how much I am walking so I can get a sense of my abilities ie. how far I can walk before my feet start killing me or extreme fatigue sets in. I would like to get some perspective re conditioning. So however far am walking...estimate 5-6 miles, I am doing it with my pack loaded at 20 lbs. It is really beautiful right now here in Northern California. Very green and lupine are blooming. Perfect walking temperature about 60 degrees. Besides the technical difficulties, I am enjoying the walk.