Health & Fitness Calculators
BMI, calories, TDEE, macros and pregnancy due dates, using the formulas clinicians and researchers rely on.
- 01 BMI Calculator Body mass index with your healthy weight range, in US or metric units.
- 02 Calorie Calculator Daily calories to lose, maintain or gain weight, with a table for every goal.
- 03 TDEE Calculator Calories you burn per day, at every activity level, using three BMR formulas.
- 04 BMR Calculator Basal metabolic rate by three formulas, compared side by side with the working.
- 05 Macro Calculator Daily grams of protein, carbs and fat for your calorie target and diet style.
- 06 Calorie Deficit Calculator The daily deficit and calorie target to reach a goal weight by a set date.
- 07 Pregnancy Due Date Calculator Your estimated due date, weeks pregnant and pregnancy milestones by date.
- 08 Ovulation Calculator Your fertile window, ovulation date and next period, for the next 6 cycles.
- 09 Pace Calculator Running pace, finish time or distance, with splits and race-time predictions.
- 10 One Rep Max Calculator Your estimated 1RM from three formulas, with a training load chart.
- 11 Body Fat Calculator Body fat % from a tape measure (US Navy method), with fat and lean mass.
- 12 A1C Calculator Convert A1C to average blood sugar (eAG) and back, with ADA ranges.