Chance of my next plane flight crashing

The general aviation accident rate is 7.11 accidents/100,000 flight hours and the commercial aviation accident rate is 0.149 accidents/100,000 flight hours.

My next flight will last 4 hours, enough to hold 0.0000056 accidents. So to actually be in one accident I'll need to be on 178 572 flights of 4 hours.

So the chance of my next flight crashing is 1 in 178 572.