TRT dosage calculator

TRT dose & supply calculator suite 🧮

A professional set of calculators to support Testosterone Replacement Therapy planning and administration. Quickly generate personalized dosing recommendations, calculate exact injection volumes, and determine how many vials or ampoules you need for a treatment cycle — all designed to improve dosing accuracy, maintain stable testosterone levels, and prevent supply gaps. Shopping is optional – purchases are subject to local law.

TRT dosage calculator

Our TRT Dosage Calculator is a professional clinical tool designed to help healthcare providers and patients optimize testosterone replacement therapy protocols. Calculate personalized dosing recommendations based on individual patient parameters, treatment goals, and pharmacokinetic modeling.

How it works

Enter patient parameters including age, weight, SHBG levels, and current testosterone readings. Select your testosterone formulation and desired administration frequency. The calculator uses pharmacokinetic modeling to recommend an optimal dose that maintains stable testosterone levels within your target range. Optionally enable the injection volume calculator to see exactly how much to draw into your syringe based on your testosterone concentration. 📊

TRT supply calculator

The TRT Supply Calculator is an essential planning tool that helps you determine exactly how many vials or ampoules of testosterone you need to order for your treatment cycle. Avoid running out between orders and ensure uninterrupted therapy with accurate supply calculations.

How it works

Enter your prescribed dose per injection, administration frequency, and treatment duration in weeks. Select your testosterone packaging type (ampoules or vials with specific concentrations). The calculator determines the total testosterone needed and tells you exactly how many vials or ampoules to order, including a buffer for waste.

TRT injection volume calculator

The TRT Injection Volume Calculator is a practical tool designed to eliminate dosing confusion and ensure accurate testosterone administration. Whether you're new to self-injection or managing different vial concentrations, this calculator shows you exactly how much to draw into your syringe for each injection.

How it works

Enter your prescribed testosterone dose in milligrams and select your vial concentration (100mg/ml, 200mg/ml, 250mg/ml, etc.). Choose your syringe size (0.5ml, 1ml, or 2ml), and the calculator instantly shows you the exact volume to draw. An interactive syringe visualization displays precisely where to position the plunger, whether you're reading units (for 0.5ml and 1ml syringes) or milliliter markings (for 2ml syringes).

About Testosterone Replacement Therapy (TRT)

Testosterone Replacement Therapy (TRT) is a medical treatment prescribed for men with clinically low testosterone levels (hypogonadism). As men age, testosterone production naturally declines, but some experience levels below the normal range, leading to symptoms like fatigue, decreased libido, muscle loss, mood changes, and reduced bone density. Read more!