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- 1RM (One-Rep Max) & Training Weight Calculator | CalcBE
Estimate your 1RM from weight and reps using common formulas, then convert to training weights by %1RM or target reps. Includes rounding options and Training Max (TM).
- Body Fat Percentage Calculator | US Navy & BMI | CalcBE
Estimate body fat percentage using US Navy circumference and BMI (Deurenberg). Switch metric/US units, compute fat and lean mass, and save recent runs — no sign-in. Informational only.
- Calorie & Weight-loss Planner | TDEE, Targets, Timeline | CalcBE
Estimate your TDEE, set a calorie target to hit your goal weight by a chosen date, or see how long it will take at your current intake. Includes macro split guidance. Informational only.
- Due Date Calculator (LMP, IVF, Ultrasound) | CalcBE
Estimate your due date and today’s gestational age from LMP, conception, IVF transfer, or ultrasound. Shows trimester milestones. Planning only — no sign-in.
- Heart Rate Zone Calculator | CalcBE
Calculate heart rate training zones (Zone 1-5) using %HRmax, Karvonen (HRR), or %LTHR. Zone 2 highlight, copy table, shareable URL, and custom boundaries. No sign-in.
- Ideal weight calculator – Devine, Hamwi and BMI ranges for adults | CalcBE
Estimate ideal body weight with the Devine, Hamwi, Robinson and Miller formulas, set a custom BMI goal, and compare kg/lb outputs. Informational only.
- Running Pace, Time and Distance Calculator | CalcBE
Solve running pace, time, or distance from the other two. Race presets (5K, 10K, half, marathon) with min/km or min/mile plus km/h speeds and lap splits.
Featured
Popular health tools picked for quick access.
- BMI calculator (kg/cm) – BMI & WHO category | CalcBE
Enter weight (kg) and height (cm) to get your BMI and WHO category instantly. Copy a shareable result link. Informational only—not medical advice.
- BMR & TDEE calculator – daily calorie needs and energy use | CalcBE
Estimate your basal metabolic rate and total daily energy expenditure with the Mifflin-St Jeor equation. Enter your age, sex, height, weight and activity level to see maintenance calories.
- BMI, BMR & TDEE Calculator | Metric & Imperial Units | CalcBE
Enter your age, sex, height, weight and activity level to calculate BMI, basal metabolic rate (BMR) and total daily energy expenditure (TDEE) at once. Supports metric/imperial units, shareable URLs and saved favorites…
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