Li Shenron
Legend
Combat/Exploration: feet. Even tho I live in a country where the standard is the metric system, the imperial measurements have a much more flavorful appeal to me. This also applies to pounds, oz and so on.
Overland travel: hours, days. Forget about strict distance measurements, all that matter is how long does it take for people and goods to move around, so pick a reference mean of transportation (e.g. horse at cruise speed) and use that, comprehensive of terrain features. Eventually provide a tiny reference table of multipliers for different means vs horse (walk, forced march, caravan, galloping horse...).
Overland travel: hours, days. Forget about strict distance measurements, all that matter is how long does it take for people and goods to move around, so pick a reference mean of transportation (e.g. horse at cruise speed) and use that, comprehensive of terrain features. Eventually provide a tiny reference table of multipliers for different means vs horse (walk, forced march, caravan, galloping horse...).