Hey, people are giving out some bad information about syringes here that might make you miscalculate your dose.
If you have a standard 1 cc insulin syringe, 1 cc = 1 mL. The syringe will be broken up into 100 units.
One unit is 1/100 cc = 1/100 mL.
If you have an 0.5 cc "thin barrel" syringe, 0.5 cc = 0.5 mL. The syringe will be broken up into 50 units.