The volume of one ton of oil is 1/p cubic meter.

The number of barrels equivalent to one ton of oil is 1/p * 6.29 barrels (oil).

Dividing the density by 6.29 is the formula for calculating the conversion coefficient of how many barrels of oil 1 ton of oil is equal to. This conversion coefficient is related to the density of oil products, and there is a mutual relationship. For example, the density of Daqing crude oil is 0.8602, and the density of Shengli 10 1 oil depot is 0.9082, respectively:

Conversion coefficient of Daqing crude oil =6.29/0.8602=7.3 1.