*Originally posted by @divegeester*

**That sounds like about one metre, as per a metre rule held at arms length?**

I think it would be something like that, give or take.

Roche limit would make things difficult for Earth even if we were not at the limit, the amount of tides would be maybe 10 times what they are now or more.

Deep, here is a link to Roche limit formulae,

https://en.wikipedia.org/wiki/Roche_limit

My question is the units, what are they, I know they are MKS I think but I get nonsense answers when I plug in numbers.

Mass of Jove, ~1.9E27 Kg, radius ~64,000 km, density ~1.3 Gm/Cm^3 but they seem to using numbers for that 1000 X higher.

Earth/Moon distance, ~ 384,000 km, Earth mass ~ 6E24 Kg, density 5.5 gm/cm^3

https://en.wikipedia.org/wiki/Roche_limit

There is a simplified formula D=~1.26 R (DM/dm)^.3333 (cube root)

It sure would be nice to put in units for us without Phd's in physics.