Questions and answers — strength
How do you calculate mg per ml?
Formula, examples and a calculator to work out the strength in mg/ml and how many ml to give.
Short answer: Strength in mg/ml = number of mg ÷ number of ml. 200 mg in 4 ml is 50 mg/ml. The volume to give is the dose ÷ the strength.
Calculate mg per ml
Enter the mg and ml.
mg per ml
How to calculate it
mg/ml = mg ÷ ml
ml to give = Prescribed dose (mg) ÷ Strength (mg/ml)
Example: The prescribed dose is 100 mg. The solution is 50 mg/ml. 100 ÷ 50 = 2 ml.
From percent to mg/ml: percent to mg/ml. Prescribed in grams? See unit conversion.
Frequently asked questions
How do you calculate mg per ml?+
Divide the number of mg by the number of ml. 200 mg in 4 ml is 50 mg/ml.
How do you work out how many ml to give?+
Divide the prescribed dose by the strength in mg/ml.
How many mg/ml is 1 percent?+
10 mg/ml.
Practise dosage calculations in Dos
Dos is a practice app for drug calculations. It has practice tests of ten questions, a built-in calculator next to each question, and statistics per topic.
