GLP-1 drugs are everywhere in 2026. Men are checking testosterone levels, tracking protein intake, and optimizing gym performance more than ever. But most health calculator sites either want your email, show ads before results, or require a signup.
I built 5 free men's health tools that run entirely in your browser — no account, no data collection, instant results.
1. Semaglutide Dosage Calculator
If you're on Ozempic, Wegovy, or compounded semaglutide, converting mg to syringe units is confusing — especially with different vial concentrations.
Semaglutide Dosage Calculator — enter your vial concentration, prescribed dose, and syringe size. Get the exact volume to draw plus a full titration schedule (0.25mg → 2.4mg) with your current phase highlighted.
Works for all concentrations (1-10 mg/mL) and syringe sizes (0.3mL, 0.5mL, 1mL).
2. Free Testosterone Calculator (Vermeulen Method)
Total testosterone doesn't tell the full story — free testosterone is what your body actually uses. Most online calculators are outdated or require signup.
Free Testosterone Calculator — uses the gold-standard Vermeulen binding equilibrium method. Enter your total T, SHBG, and albumin from blood work. Get free testosterone, bioavailable testosterone, and see where you fall on age-based reference ranges (20s through 70+).
Shows Low / Normal / High status with a visual indicator.
3. One Rep Max Calculator (7 Formulas)
Most 1RM calculators use a single formula. Different formulas give different estimates, and the variance matters when you're programming training.
One Rep Max Calculator — calculates your 1RM using all 7 proven formulas (Brzycki, Epley, Lander, Lombardi, Mayhew, O'Conner, Wathan) and shows a comparison table. Also generates a percentage-based training table and warm-up set recommendations.
Enter weight and reps — works for bench press, squat, deadlift, or any lift.
4. Protein Intake Calculator
"How much protein do I need?" depends on your weight, activity level, and whether you're cutting, bulking, or maintaining. Generic advice doesn't cut it.
Protein Intake Calculator — calculates your daily protein target based on body weight, activity, and goal. Shows protein per meal (3-5 meals/day), percentage of estimated TDEE, and a food suggestions table that changes based on your diet type (standard, vegetarian, vegan, or keto).
5. Creatine Dosage Calculator
Creatine is the most researched sports supplement, but dosing varies by body weight, creatine type, and whether you're doing a loading phase.
Creatine Dosage Calculator — calculates loading and maintenance doses for monohydrate, HCL, ethyl ester, and buffered creatine. Shows a dosing schedule, monthly cost estimate, and how much extra water you should drink.
Why These Run in Your Browser
All 5 tools use client-side JavaScript only. Your health data (testosterone levels, weight, medications) never leaves your device. No server, no database, no tracking.
All free at tool.teamzlab.com/health
Built these because I was frustrated with health calculators that gate results behind email captures. If you find them useful, I'd appreciate a share.
Originally published at https://tool.teamzlab.com
Top comments (0)