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.
You can view more details on each measurement unit: quart [US, dry] or cubic foot. The SI derived unit for volume is the cubic meter. 1 cubic meter is equal to 908.082978262 quart [US, dry], or 35.3146665722 cubic foot. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between quarts and cubic feet.