Calculating HCG and units

Hey guys , please could you assist me .
I'll be adding 2 ml bac water to 5000ius of HCG and I need to inject 500 ius which is 0.2 ml .
Is it correct in assuming I would then need to inject 20 units on a insulin syringe to get 500 ius ?

This is how I am calculating it

2 ml =200 units
5000/200 = 25 ius
500/25 = 20 units

Is this correct or am I mistaken ?

Hey correct. 20units in the insulin syringe equals 500ius

Also depends on the size of your insulin syringe. True for a 1ml syringe

Thanks guys , I will go and get 1 ml syringes

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