The SI derived unit for volume is the cubic meter. 1 cubic meter is equal to 264.172051242 gallon, or 1000 litre. Note that rounding errors may occur, so always check the results.
Snoring is a common problem, caused by a blockage of the nasal passages during sleep. Snoring can be a sign of a serious problem called sleep apnea, where you stop breathing for 10 seconds or more during sleep. There are two types of doctors who treat snoring problems: sleep medicine doctors and otolaryngologists (ear, nose and throat doctors). (AndreyPopov/iStock/Getty Images)
You may want to see a sleep medicine physician if you snore regularly or loudly. If you also make choking or gasping sounds as you snore, you will need to be tested for obstructive sleep apnea. In addition to a complete medical history, the physician will need to know how long you have been snoring. You will also need to tell the physician whether you recently gained weight or stopped exercising.