The Hobbytoolkit - Your Ultimate Toolkit for Hobbyists—Calculators, Generators & Planning Tools Save time, money, and frustration with our free, easy-to-use tools for 3D printing, knitting, homebrewing, and more! Tools and Calculators 3D Print Time Estimator 3D Printer Noise Level Calculator ABV Calculator Distilling Proof Calculator Filament Price Comparison Homebrew Recipe Scaler Hop IBU Calculator Mash pH Adjustment Tool Priming Sugar Calculator for Bottling Explore More Tools