silverdiv......you are talking to the crock pot expert. You really want to cook your roast on low but if you have to cook it on high depending on the size of the roast it usually should take 3-4 hours.
The symbol for cubic meters is m 3. Less formally, cubic meter is sometimes abbreviated cu m. When calculating volume, it is important to realize that volume is proportional to the cube of the linear dimension.
Standard cubic conversion is 1 cubic meter of space = 250kgs. Standard cubic conversion is 1 cubic meter of space = 333kgs. Multiply the Height (H) x Length (L) x Width (W) = M3 (Cubic measurement) .CM X .CM X .CM =M3. To convert the cubic measurement to KG multiply the M3 amount by the applicable conversion rate.