# MW SysArc Health and Fitness Calculators

> Explore educational estimates for body measurements, energy needs, exercise, pregnancy dates and cycle timing.

All calculations on these pages run locally in the visitor's browser. Calculation inputs are not uploaded or stored.

## Tools

- [Pregnancy Due Date Calculator](https://health.mwsysarc.com/pregnancy-due-date-calculator): Estimate a pregnancy due date and conception timing from the first day of the last menstrual period.
- [Ovulation and Fertile Window Calculator](https://health.mwsysarc.com/ovulation-calculator): Estimate ovulation, a possible fertile window and the next period from cycle dates.
- [BMI Calculator](https://health.mwsysarc.com/bmi-calculator): Calculate adult body mass index and the corresponding standard screening range.
- [BMR and TDEE Calculator](https://health.mwsysarc.com/bmr-tdee-calculator): Estimate basal metabolic rate and total daily energy expenditure using activity multipliers.
- [Calorie Deficit Calculator](https://health.mwsysarc.com/calorie-deficit-calculator): Translate a planning-level weekly weight-change target into an estimated daily energy difference.
- [Body Fat Percentage Calculator](https://health.mwsysarc.com/body-fat-calculator): Estimate body-fat percentage from circumference measurements using the US Navy method.
- [Ideal Weight Reference Calculator](https://health.mwsysarc.com/ideal-weight-calculator): Compare the historical Devine reference with weights corresponding to BMI 18.5 and 24.9.
- [Macronutrient Calculator](https://health.mwsysarc.com/macro-calculator): Convert a daily calorie total and percentage split into grams of protein, carbohydrate and fat.
- [Running Pace Calculator](https://health.mwsysarc.com/running-pace-calculator): Calculate minutes per kilometre, minutes per mile and average speed from distance and finishing time.
- [Heart Rate Zone Calculator](https://health.mwsysarc.com/heart-rate-zone-calculator): Estimate moderate and vigorous exercise zones from age and resting heart rate.
- [One-Rep Max Calculator](https://health.mwsysarc.com/one-rep-max-calculator): Estimate a one-repetition maximum from a submaximal weight and completed repetitions.
- [Waist-to-Height Ratio Calculator](https://health.mwsysarc.com/waist-to-height-calculator): Calculate waist circumference as a proportion of height for general screening context.
- [Calories Burned by MET Calculator](https://health.mwsysarc.com/calories-burned-calculator): Estimate exercise energy expenditure from body weight, activity MET value and duration.
- [Sleep Duration Calculator](https://health.mwsysarc.com/sleep-duration-calculator): Calculate time in bed, estimated sleep duration and approximate cycle count across midnight.
- [Daily Water Intake Estimate](https://health.mwsysarc.com/water-intake-calculator): Create a planning estimate from body weight and exercise time with adjustable assumptions.

## Publisher

MW SysArc — https://mwsysarc.com