The following is on fixed gear ratios.
Collected from the web, with no garantee it matches your experience, but it
helped me.
42-18
,42-19 hhsb
and trick rider = 4.89 m44x16 pub/fun/rain brakeless bike = 5.76 m
44-16 ally cat = 5.76 m
44/16 - Commuter/Hack/Throw around and bunnyhop everywhere bike = 5.76 m
47/17 - Nice Bike for on the road = 5.42
44-17 winter gear keep legs warm. = 5.42
44/22 - Polo bike = 4.19
46-14 track gear = 6.59
46x16 brakeless nice weather bike = 5.76
46-17 summer gear. good nice gear = 5.42
48x16 distance bike w/front brake(that doubles as the H/H bike sans brake)=6.29
49*20 on the road = 4.79
49*14 on the track = 5.30
50/14-Epic ratio = 7.49
50-16 = 6.55
50 -15 race gear = 6.99