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9 Free Calculators

Health Calculators

Know your numbers. BMI, ideal weight, body fat, ovulation, calories, and pregnancy milestones. 9 free health calculators — instant results, no sign-up.

Body Mass Index using WHO/CDC standards with visual scale and healthy weight range.

Ideal Weight Calculator

Healthy weight range using 5 scientific formulas: Hamwi, Devine, Robinson, Miller, BMI.

Calorie Calculator

BMR, TDEE, and daily calories for your goal. Includes food search and meal diary.

Pregnancy Calculator

Due date, current week, trimester, and key milestones from LMP or conception date.

Body Fat Calculator

US Navy circumference method for men and women. Includes category gauge, lean mass, and fat-to-lose estimate.

Ovulation Calculator

Fertile window, ovulation date, and next period from cycle and luteal phase length. Visual month calendar included.

Peptide Reconstitution Calculator

Concentration, injection volume, and U-100 syringe units from vial size and BAC water. Works for BPC-157, TB-500, semaglutide, and all research peptides.

Water Intake Calculator

Daily hydration target based on weight, activity level, climate, and pregnancy status. Outputs oz, mL, and glasses with an animated fill gauge.

Creatine Dosage Calculator

Loading and maintenance doses by body weight for Monohydrate, HCl, and Kre-Alkalyn. Includes scoops per day, monthly supply, and 30-day cost estimate.

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