Hey folks, if you haven’t already, and if you want to be able to easily access this site/content, please update your links to https://trains.gerenm.net or https://gerenm.net. I’ll be releasing the on30guy.com address permanently, effective February 26, 2023.
It’s not always easy to do quick conversions between metric and imperial measurements, beyond knowing that 1″ = 25.4mm, especially when dealing with fractional numbers. Fortunately, there’s a great website out there that makes it easy: RapidTables.com. The converters I find most helpful for modeling are: Inches to Millimeters Millimeters to Inches