I know the game measures in meters so lets see...(googles) 5ft is 1.524 meters, for sanity's sake we can round down to 1.5 meters.
Just as an aside; the game has the option for you to switch the display between imperial and metric, as you prefer - However, as someone who uses the metric system entirely in every aspect of her day to day life, I actually
still keep the game set to imperial, because 5e is designed for and made in imperial, it's set up to work with imperial, and it's what we measure in at our home tables regardless - that's just the system the PnP game uses, and it only needs to make sense in relation to itself.
So, I know I can run 25 feet, and I know that I can misty step 30 feet; I can convert those if I want to, but all that actually *matters* is that I know that the enemy target is 50 feet away, so I know that I can, indeed, reach them for some righteous clobbering.
