---
title: "Health - Free calculators | Numequo"
description: "Useful estimates for everyday wellbeing. Enter your values to get a clear result, then review the formula, examples and practical explanations."
canonical: "https://www.numequo.com/health/"
locale: "en"
---
# Health

Useful estimates for everyday wellbeing.

## Subcategories

### [Body metrics](https://www.numequo.com/health/body-metrics/)

Explore general body measurements and reference ranges with appropriate context.

- [BMI Calculator](https://www.numequo.com/health/body-metrics/bmi-calculator/) - Estimate adult body mass index in metric or imperial units.
- [Ideal Weight Calculator](https://www.numequo.com/health/body-metrics/ideal-weight-calculator/) - Compare four common height-based reference formulas.
- [Waist-to-Hip Ratio Calculator](https://www.numequo.com/health/body-metrics/waist-to-hip-ratio-calculator/) - Calculate waist-to-hip ratio and compare it with general WHO reference thresholds.

### [Nutrition and energy](https://www.numequo.com/health/nutrition-energy/)

Estimate daily energy needs and make nutrition numbers easier to understand.

- [Calorie Needs Calculator](https://www.numequo.com/health/nutrition-energy/calorie-calculator/) - Estimate daily energy needs using the Mifflin–St Jeor equation.
- [Protein Needs Calculator](https://www.numequo.com/health/nutrition-energy/protein-needs-calculator/) - Estimate the EFSA population reference intake for protein from body weight and life stage.

### [Diabetes and blood glucose](https://www.numequo.com/health/diabetes-blood-glucose/)

Convert blood glucose units and calculate educational metabolic indicators from laboratory values.

- [Blood Glucose Converter](https://www.numequo.com/health/diabetes-blood-glucose/blood-glucose-converter/) - Convert blood glucose readings between mg/dL and mmol/L.
- [HOMA-IR Calculator | Insulin Resistance](https://www.numequo.com/health/diabetes-blood-glucose/homa-ir-calculator/) - Calculate the original HOMA1-IR estimate from fasting glucose and insulin laboratory values.

### [Sleep and recovery](https://www.numequo.com/health/sleep-recovery/)

Measure sleep durations and put nightly schedules into perspective.

- [Sleep Duration Calculator](https://www.numequo.com/health/sleep-recovery/sleep-duration-calculator/) - Calculate the elapsed time between bedtime and wake-up, including overnight sleep.

## Health tools to understand measurements and habits

Health numbers are most helpful when they are placed in context. These tools help you understand measurements, daily habits and laboratory-unit conversions without replacing professional care.

Use the result as a starting point for a conversation or for tracking a trend. Symptoms, medical history and laboratory methods can change what a number means.

### Tools to explore next

- [BMI Calculator](https://www.numequo.com/health/body-metrics/bmi-calculator/) - Estimate adult body mass index in metric or imperial units.
- [Calorie Needs Calculator](https://www.numequo.com/health/nutrition-energy/calorie-calculator/) - Estimate daily energy needs using the Mifflin–St Jeor equation.
- [Protein Needs Calculator](https://www.numequo.com/health/nutrition-energy/protein-needs-calculator/) - Estimate the EFSA population reference intake for protein from body weight and life stage.
- [Blood Glucose Converter](https://www.numequo.com/health/diabetes-blood-glucose/blood-glucose-converter/) - Convert blood glucose readings between mg/dL and mmol/L.

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