# NowTo Life - Complete Reference

> Free health and life calculators. 20+ tools including BMI calculator, calorie counter, pregnancy due date calculator, sleep cycle calculator, body fat percentage calculator, and macronutrient calculator. Available in 22 languages.

Official URL: https://life.now.to
Category: HealthApplication
Supported Languages: en, zh-TW, zh-CN, ja, ko, es, fr, de, pt, ru, it, nl, pl, tr, ar, th, vi, id, ms, hi, bn, uk
Keywords: BMI calculator, calorie calculator, pregnancy due date, health calculators, sleep calculator

## About

NowTo Life is a free, no-registration-required online tool.
Evidence-based health calculators using established medical formulas like Mifflin-St Jeor, Harris-Benedict, and standard BMI calculations.

## Complete Feature List

### [BMI Calculator](https://life.now.to/bmi)
Calculate Body Mass Index from height and weight

### [Calorie Calculator](https://life.now.to/calories)
Estimate daily caloric needs based on activity level

### [Pregnancy Due Date](https://life.now.to/pregnancy)
Calculate estimated due date from last menstrual period

### [Sleep Calculator](https://life.now.to/sleep)
Find optimal bedtime and wake-up times based on sleep cycles

### [Body Fat Calculator](https://life.now.to/body-fat)
Estimate body fat percentage using body measurements

### [Water Intake Calculator](https://life.now.to/water)
Calculate recommended daily water intake

### [Heart Rate Zones](https://life.now.to/heart-rate)
Calculate target heart rate zones for exercise

### [Macro Calculator](https://life.now.to/macros)
Calculate daily macronutrient needs (protein, carbs, fat)

## Frequently Asked Questions

### How is BMI calculated?
BMI = weight (kg) / height (m)^2. A BMI of 18.5-24.9 is considered normal weight. Visit life.now.to/bmi for instant calculation.

### How many calories do I need per day?
Daily calorie needs depend on age, sex, weight, height, and activity level. Use life.now.to/calories for a personalized estimate based on the Mifflin-St Jeor equation.