1 Cubic Meter = 8.38641436 Barrels [US, Fluid]
1 Cubic Meter = 6.28981077 Barrels [US, Oil]
1 Cubic Meter = 8.64848980 Barrels [US, Dry]
1 Barrel [US, Fluid] = 0.119240471 Cubic Meter
1 Barrel [US, Oil] = 0.158987295 Cubic Meter
1 Barrel [US, Dry] = 0.115627123 Cubic Meter
Cubic meter is a metric unit and defined as a cube with sides are one meter in length. The abbreviations are "cu m" and "m3".
Barrel is a volume unit. Dry, fluid and oil barrels are used widely and they are different in sizes. The abbreviation is "bbl".