I’ve always been a bit of a quantifier, so a couple of years ago, when I first started riding my bikes semi-religiously, I started keeping a spreadsheet to log my miles.At first the entries listed just distance.Over time, they’ve grown to include, in some cases, which bike, destination, average speed, wind and weather, plus room for notes, like “Ugh, that was hard,” or, “Hit by car!”I’ve kept the log dutifully for years, looking back occasionally to compare mileage for the week, month or year.I don’t spend a lot of time with it, but occasionally I’ll see how many 300-mile weeks I had in 2008 compared to last year (down considerably), or how many 100-mile days I had over the summer (a handful), or puzzle over why my recreational rides this year were noticeably slower than last year.What can I say? I’m a bit of a stats geek.A couple of weeks ago, I started to wonder how many times I had ridden to work and back.My bean-counter wife (and master spreadsheet jockey) provided the know-how to count the occurrences of “JW” in the destination field, and I let Excel tell me the answer.I honestly had no idea.I thought it’d be neat to make a milestone, like 1,000.To my surprise, the answer was 2,008.First, I find it an amazing coincidence that I just happened to total up my career commutes on just the right day that the answer — for the only time in my life — would be the same as the year (unless, of course, in my spreadsheet ineptitude I simply asked Excel what year it was).But I was surprised to learn I had covered the 10-mile round trip between work and home 2,008 times.I’m not great at cipherin’, but that’s 20,080 miles just in work commutes. That doesn’t include my recreational rides or my rides to racquetball or the bank or the store or anywhere else.Simpleton that I am, I have a hard time wrapping my little noggin around such a big figure. So Google helped me out.It’s about 3,000 miles from Los Angeles to New York City. So I’ve commuted across the country almost seven times.The circumference of the earth at the equator is 24,901.55 miles, so I’ve almost circumnavigated the globe.More fun with numbers: If I averaged 15 mph (and I didn’t), I’ve spent 1,338.7 hours on my bike commuting, or 55.8 days.At approximately 35 calories per mile, I’ve burned 702,800 calories just riding to and from work. At 3,500 calories per pound, that’s 200.8 pounds. It’s also about 1,301 Big Macs.And if I had driven those 20,080 miles instead of riding them, I would have burned 1,004 gallons of gas if I get 20 mpg. At $1.50 per gallon, that’s $1,506 I saved pushing the pedals.Curiously, then, that I should feel fat. And poor.