When I marked the sight tubes on my keggles, I weighed each gallon of water according to what it should weigh at whatever temp it was. It's really the most accurate way to do it.
Fermenting: Helles, Egregious-ish, Barrel Fermented Dreg Lambic, Sacch Trois Helles
Drinking: RIS, Tripel, Tired Hands Style IPA, Carrot Blossom Cedar Mead, Dusseldorf Altbier, Dopplebock, Cider, Rye Berliner Weisse, Sauerkraut Fermented Gose, Lambic, Sacch Trois IPA, Brett Blonde, Kriek, Saison, Sour Blonde
Barrel aged: RIS, Rye Barleywine, Tripel, Wee-Heavy