How the HCG Calculator Works

Start with the values for your vial

Enter the total HCG amount in IU, the final solution volume in mL, and the dose per injection prescribed for you. The concentration appears as soon as the vial amount and volume are entered.

From HCG IU to mL and U-100 units

HCG IU measure hormone activity. U-100 syringe units represent a volume scale where 100 units equals 1 mL. They are different quantities.

Worked example: 5,000 IU in 2 mL

This example illustrates the arithmetic using a prescribed 250 IU dose. It is not a dose or preparation recommendation.

Concentration

5,000 ÷ 2 = 2,500 IU/mL

Volume per injection

250 ÷ 2,500 = 0.1 mL

U-100 syringe reading

0.1 × 100 = 10 units

Complete doses

5,000 ÷ 250 = 20 doses

Precision and calculator limits

Calculations use the entered values at full numerical precision. Results display up to four decimal places, without unnecessary trailing zeroes. Positive values smaller than 0.0001 are shown as less than 0.0001.

The illustration stops at 1 mL and the calculator flags larger volumes. A dose greater than the total vial IU does not produce a valid result. Confirm practical measurement and rounding with your prescriber or pharmacist.

Vial yield counts complete doses only and does not account for draw loss or syringe dead space. It does not determine how long a prepared vial remains usable. Follow your product’s preparation, storage, and discard instructions.

This tool converts a prescribed dose. It does not select treatment, injection equipment, diluent, or frequency. Read the medical disclaimer and the HCG FAQ.