Calculators

Blood Level Conversion

Estradiol

pg/mL ↔ pmol/L

The typical target is 100-200 pg/mL, however levels around 200-400 pg/mL are useful for monotherapy to suppress testosterone and are commonly preferred.

Testosterone

ng/dL ↔ nmol/L

Testosterone should be under 50 ng/dL, and ideally under 30 ng/dL. Immunoassay tests will likely be inaccurate below 50 ng/dL. If you can, get the LC/MS test when testing testosterone.

Vial Life & Dose Calculator

The vial lifetimes are an estimate, please don't treat them as exact. Using vials for a long time increases the risk of coring and contamination. We recommend always having a spare vial if possible. This calculator is based on an offline spreadsheet calculator here.

Calculator

I am injecting mg

every days

My vial is mL

at mg/mL

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Inject a volume of mL

Dosing

Ester Injection Time Dose
Valerate Every five days or less 3-6mg
Cypionate Around every seven days 4-8mg
Enanthate Around every seven days 4-8mg
Enanthate Around every ten days 6-10mg
Undecylate (MCT Oil) Around every twenty one days 15-25mg
Undecylate (Castor Oil) Around every 31 days 40-60mg

Tip! You can use estrannaise to estimate blood levels for various dosing intervals.